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CVE-2026-85597 (GCVE-0-2026-85597)

Vulnerability from nvd – Published: 2026-09-04 11:30 – Updated: 2026-09-04 18:04

Title

Traefik before v2.11.55 mTLS Bypass via TLS Option Conflict

Summary

Traefik before v2.11.55 contains a TLS option conflict resolution vulnerability that allows unauthenticated attackers to bypass client-certificate authentication by creating conflicting TLS options on multi-host routers. Attackers can reach protected backends by exploiting shared TLS resolution across multiple hostnames in a single router rule, causing the strict mTLS requirement to fall back to default options for all hosts.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 18:03 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.55 (semver) Unaffected: 2.11.55 (semver)
traefik	traefik	Affected: 3.0.0 , ≤ 3.7.12 (semver)

Date Public

2026-08-21 00:00

Credits

james-yusuke

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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              "content": {
                "id": "CVE-2026-85597",
                "options": [
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                  },
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
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                "timestamp": "2026-09-04T18:03:53.030722Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "defaultStatus": "unaffected",
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      },
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          "name": "GitHub Security Advisory (GHSA-g55h-rg46-x9c5)",
          "tags": [
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        },
        {
          "name": "VulnCheck Advisory: Traefik before v2.11.55 mTLS Bypass via TLS Option Conflict",
          "tags": [
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CVE-2026-85596 (GCVE-0-2026-85596)

Vulnerability from nvd – Published: 2026-09-04 11:30 – Updated: 2026-09-04 11:30

Title

Traefik v3.7 Authentication Bypass via TLS Option Conflict

Summary

Traefik versions >= v3.7.0 and <= v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX provider. The TLS option generated for an Ingress carrying the nginx.ingress.kubernetes.io/auth-tls-secret annotation was named after the Ingress namespace and name. As a result, two Ingress objects sharing the same host, the same client CA secret, and the same client-authentication mode produced two distinct TLS option names for that host. Traefik treats this as a TLS options conflict and falls back to the entry point's default TLS configuration, which does not request a client certificate, so a route configured with nginx.ingress.kubernetes.io/auth-tls-verify-client: "on" becomes reachable without a client certificate. Only the v3.7 line is affected; the issue is fixed in v3.7.11.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-3.7-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , ≤ 3.7.12 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-08-21 00:00

Credits

james-yusuke

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/Traefik",
          "product": "traefik",
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          "versions": [
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              "status": "affected",
              "version": "3.7.0",
              "versionType": "semver"
            }
          ]
        }
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      "cpeApplicability": [
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          "type": "reporter",
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        }
      ],
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      "descriptions": [
        {
          "lang": "en",
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      ],
      "metrics": [
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            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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CVE-2026-85595 (GCVE-0-2026-85595)

Vulnerability from nvd – Published: 2026-09-04 11:29 – Updated: 2026-09-04 13:56

Title

Traefik before v2.11.55 Authentication Bypass via digestAuth

Summary

Traefik versions before v2.11.55 contain an authentication bypass vulnerability in the digestAuth middleware where unknown usernames receive an empty secret instead of rejection. Attackers can compute a valid digest response using the empty secret and arbitrary credentials to bypass authentication on any digestAuth-protected route without a valid username or password.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 13:55 UTC

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.55 (semver) Unaffected: 2.11.55 (semver)
traefik	traefik	Affected: 3.0.0 , ≤ 3.7.12 (semver)

Date Public

2026-08-21 00:00

Credits

matiasinsaurralde

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85595",
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                    "Technical Impact": "total"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-04T13:55:39.203578Z",
                "version": "2.0.3"
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CVE-2026-85594 (GCVE-0-2026-85594)

Vulnerability from nvd – Published: 2026-09-04 11:29 – Updated: 2026-09-04 11:29

Title

Traefik v3.7.1 crossProviderNamespaces Bypass via Service Middleware

Summary

Traefik versions from v3.7.1 fail to enforce crossProviderNamespaces restrictions on the traefik.ingress.kubernetes.io/service.middlewares Service annotation in the Kubernetes Ingress provider. A namespace-limited tenant excluded from the allowlist can attach an operator-owned middleware to its Service, and if that middleware injects backend credentials, recover them at a controlled backend.

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-3.7.…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.1 , ≤ 3.7.12 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-08-21 00:00

Credits

velgusgus599

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/Traefik",
          "product": "traefik",
          "vendor": "traefik",
          "versions": [
            {
              "lessThanOrEqual": "3.7.12",
              "status": "affected",
              "version": "3.7.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "3.7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
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          "lang": "en",
          "type": "reporter",
          "value": "velgusgus599"
        }
      ],
      "datePublic": "2026-08-21T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
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              "description": "Authorization Bypass Through User-Controlled Key",
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        "dateUpdated": "2026-09-04T11:29:58.771Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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          ],
          "url": "https://github.com/traefik/traefik/security/advisories/GHSA-m6wx-622r-48r9"
        },
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          "name": "VulnCheck Advisory: Traefik v3.7.1 crossProviderNamespaces Bypass via Service Middleware",
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          "url": "https://www.vulncheck.com/advisories/traefik-3.7.1-crossprovidernamespaces-bypass-via-service-middleware"
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      ],
      "title": "Traefik v3.7.1 crossProviderNamespaces Bypass via Service Middleware",
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  },
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}

CVE-2026-71327 (GCVE-0-2026-71327)

Vulnerability from nvd – Published: 2026-08-06 16:38 – Updated: 2026-08-07 15:41

Title

Traefik: Gateway API route identity collision allows cross-namespace backend hijacking

Summary

Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10.

Severity

7.6 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:40 UTC

CWE

CWE-694 - Use of Multiple Resources with Duplicate Identifier

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13580	x_refsource_MISC
https://github.com/traefik/traefik/commit/a764166…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: >= 3.0.0, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-71327",
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  },
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}

CVE-2026-71326 (GCVE-0-2026-71326)

Vulnerability from nvd – Published: 2026-08-06 16:34 – Updated: 2026-08-08 02:12

Title

Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing

Summary

Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik's BasicAuth middleware in pkg/middlewares/auth/basic_auth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and secret, allowing an attacker who has a valid credential and the stored hash to authenticate as an unconfigured username when headerField trusts the forwarded identity. This issue is fixed in 3.6.25 and 3.7.10.

Severity

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-08 02:12 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13572	x_refsource_MISC
https://github.com/traefik/traefik/commit/b5ace8e…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: >= 3.6.11, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
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                    "Technical Impact": "total"
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CVE-2026-71325 (GCVE-0-2026-71325)

Vulnerability from nvd – Published: 2026-08-06 16:24 – Updated: 2026-08-07 17:09

Title

Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef

Summary

Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10.

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:34 UTC

CWE

CWE-653 - Improper Isolation or Compartmentalization
CWE-863 - Incorrect Authorization

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/commit/65ebf4b…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: < 2.11.54 Affected: >= 3.0.0, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-71324 (GCVE-0-2026-71324)

Vulnerability from nvd – Published: 2026-08-06 15:56 – Updated: 2026-08-07 15:43

Title

Traefik: Cross-user response poisoning via proxied CONNECT on Traefik's shared backend keep-alive pool

Summary

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.53, 3.6.24, and 3.7.9, Traefik's default HTTP reverse proxy forwards a plain HTTP/2 or HTTP/3 CONNECT request and its body to an HTTP/1.1 upstream through a shared net/http.Transport. When the upstream answers the CONNECT with a keep-alive non-2xx response and does not drain the body, Traefik returns the desynchronized backend socket to its shared pool and reuses it for other clients. An unauthenticated attacker can use this behavior to make a different client read the attacker's smuggled response, which can include authenticated or private content from another request. The ForwardAuth middleware with forwardBody true and preserveRequestMethod true can re-issue a CONNECT with the buffered body attached, exposing the auth-client pool to the same desynchronization. This issue is fixed in 2.11.53, 3.6.24, and 3.7.9.

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:43 UTC

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

GitHub_M mitre root

References

10 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13542	x_refsource_MISC
https://github.com/traefik/traefik/pull/13543	x_refsource_MISC
https://github.com/traefik/traefik/pull/13556	x_refsource_MISC
https://github.com/traefik/traefik/commit/04d36f2…	x_refsource_MISC
https://github.com/traefik/traefik/commit/0807b6d…	x_refsource_MISC
https://github.com/traefik/traefik/commit/94a7508…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.24	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.9	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: < 2.11.53 Affected: >= 3.0.0, < 3.6.24 Affected: >= 3.7.0, < 3.7.9

Show details on NVD website

JSON

To clipboard

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  "containers": {
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CVE-2026-67309 (GCVE-0-2026-67309)

Vulnerability from nvd – Published: 2026-08-01 12:22 – Updated: 2026-08-03 16:00

Title

Traefik v3.7.0 Path Traversal via RewriteTarget Authentication Bypass

Summary

Traefik versions >= v3.7.0 and <= v3.7.7 contain a path traversal vulnerability in the Kubernetes Ingress NGINX provider's RewriteTarget middleware (generated from the nginx.ingress.kubernetes.io/rewrite-target annotation). When an Ingress path uses a regex that captures attacker-controlled text without requiring a path separator (e.g., path /api(.*) with rewrite target /$1), a crafted request such as /api../admin matches the public router, is rewritten to a dot-segment traversal path (/../admin), and is forwarded without post-replacement normalization validation. A backend that normalizes dot segments resolves the path to a protected endpoint (e.g., /admin) reachable only through a separate router secured with BasicAuth, DigestAuth, or ForwardAuth, resulting in route-level authentication bypass. The issue is fixed in v3.7.8.

Severity

7.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 16:00 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/b93f02c…	patch
https://github.com/traefik/traefik/commit/69259c3…	patch
https://www.vulncheck.com/advisories/traefik-path…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , < 3.7.8 (semver) Unaffected: 3.7.8 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-07-16 00:00

Credits

B1gN0Se

Show details on NVD website

JSON

To clipboard

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CVE-2026-65602 (GCVE-0-2026-65602)

Vulnerability from nvd – Published: 2026-07-22 11:21 – Updated: 2026-07-24 21:35

Title

Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass

Summary

Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references). A low-privileged Kubernetes user in a namespace not listed in crossProviderNamespaces can set serversTransport: foo@file on an IngressRouteTCP service, causing Traefik to accept the forbidden cross-provider reference and use a file-provider TCPServersTransport — including privileged backend mTLS client certificates, SPIFFE identity, or PROXY-protocol settings. This is fixed in 3.6.23 and 3.7.7.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-22 13:04 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/26c96a3…	patch
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 3.6.0 , < 3.6.23 (semver) Unaffected: 3.6.23 (semver)
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver)

Date Public

2026-07-09 00:00

Credits

CuB3y0nd james-yusuke

Show details on NVD website

JSON

To clipboard

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CVE-2026-65601 (GCVE-0-2026-65601)

Vulnerability from nvd – Published: 2026-07-22 11:21 – Updated: 2026-07-24 21:35

Title

Traefik before 3.7.7 Namespace Confusion via HTTPRoute ExtensionRef

Summary

Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules[].backendRefs[].filters[].extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route author holding a ReferenceGrant for a cross-namespace Service could therefore bind a Traefik Middleware from the backend namespace without a separate grant for that middleware, potentially injecting trusted reverse-proxy identity headers into downstream requests. The issue is fixed in version 3.7.7.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 13:51 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/26c96a3…	patch
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-07-09 00:00

Credits

CuB3y0nd

Show details on NVD website

JSON

To clipboard

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CVE-2026-65600 (GCVE-0-2026-65600)

Vulnerability from nvd – Published: 2026-07-22 11:21 – Updated: 2026-07-23 19:08

Title

Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex

Summary

Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenticated remote attacker can send a crafted request (e.g. GET /api../admin) that produces an un-normalized path such as /../admin, which a backend that normalizes paths resolves to a protected route, bypassing authentication middleware. Fixed in v2.11.52, v3.6.23, and v3.7.7.

Severity

7.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 19:08 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

3 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.52 (semver) Unaffected: 2.11.52 (semver)
traefik	traefik	Affected: 3.6.0 , < 3.6.23 (semver) Unaffected: 3.6.23 (semver)
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver)

Date Public

2026-07-09 00:00

Credits

C-h4ck-0

Show details on NVD website

JSON

To clipboard

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CVE-2026-85597 (GCVE-0-2026-85597)

Vulnerability from cvelistv5 – Published: 2026-09-04 11:30 – Updated: 2026-09-04 18:04

Title

Traefik before v2.11.55 mTLS Bypass via TLS Option Conflict

Summary

Traefik before v2.11.55 contains a TLS option conflict resolution vulnerability that allows unauthenticated attackers to bypass client-certificate authentication by creating conflicting TLS options on multi-host routers. Attackers can reach protected backends by exploiting shared TLS resolution across multiple hostnames in a single router rule, causing the strict mTLS requirement to fall back to default options for all hosts.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 18:03 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.55 (semver) Unaffected: 2.11.55 (semver)
traefik	traefik	Affected: 3.0.0 , ≤ 3.7.12 (semver)

Date Public

2026-08-21 00:00

Credits

james-yusuke

Show details on NVD website

JSON

To clipboard

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CVE-2026-85596 (GCVE-0-2026-85596)

Vulnerability from cvelistv5 – Published: 2026-09-04 11:30 – Updated: 2026-09-04 11:30

Title

Traefik v3.7 Authentication Bypass via TLS Option Conflict

Summary

Traefik versions >= v3.7.0 and <= v3.7.10 contain an authentication bypass in the Kubernetes Ingress NGINX provider. The TLS option generated for an Ingress carrying the nginx.ingress.kubernetes.io/auth-tls-secret annotation was named after the Ingress namespace and name. As a result, two Ingress objects sharing the same host, the same client CA secret, and the same client-authentication mode produced two distinct TLS option names for that host. Traefik treats this as a TLS options conflict and falls back to the entry point's default TLS configuration, which does not request a client certificate, so a route configured with nginx.ingress.kubernetes.io/auth-tls-verify-client: "on" becomes reachable without a client certificate. Only the v3.7 line is affected; the issue is fixed in v3.7.11.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-3.7-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , ≤ 3.7.12 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-08-21 00:00

Credits

james-yusuke

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
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          "product": "traefik",
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CVE-2026-85595 (GCVE-0-2026-85595)

Vulnerability from cvelistv5 – Published: 2026-09-04 11:29 – Updated: 2026-09-04 13:56

Title

Traefik before v2.11.55 Authentication Bypass via digestAuth

Summary

Traefik versions before v2.11.55 contain an authentication bypass vulnerability in the digestAuth middleware where unknown usernames receive an empty secret instead of rejection. Attackers can compute a valid digest response using the empty secret and arbitrary credentials to bypass authentication on any digestAuth-protected route without a valid username or password.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 13:55 UTC

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.55 (semver) Unaffected: 2.11.55 (semver)
traefik	traefik	Affected: 3.0.0 , ≤ 3.7.12 (semver)

Date Public

2026-08-21 00:00

Credits

matiasinsaurralde

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85595",
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                    "Automatable": "no"
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                    "Technical Impact": "total"
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CVE-2026-85594 (GCVE-0-2026-85594)

Vulnerability from cvelistv5 – Published: 2026-09-04 11:29 – Updated: 2026-09-04 11:29

Title

Traefik v3.7.1 crossProviderNamespaces Bypass via Service Middleware

Summary

Traefik versions from v3.7.1 fail to enforce crossProviderNamespaces restrictions on the traefik.ingress.kubernetes.io/service.middlewares Service annotation in the Kubernetes Ingress provider. A namespace-limited tenant excluded from the allowlist can attach an operator-owned middleware to its Service, and if that middleware injects backend credentials, recover them at a controlled backend.

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-3.7.…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.1 , ≤ 3.7.12 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-08-21 00:00

Credits

velgusgus599

Show details on NVD website

JSON

To clipboard

{
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:golang/Traefik",
          "product": "traefik",
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            {
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              "status": "affected",
              "version": "3.7.1",
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            }
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      ],
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            "attackVector": "NETWORK",
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CVE-2026-71327 (GCVE-0-2026-71327)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:38 – Updated: 2026-08-07 15:41

Title

Traefik: Gateway API route identity collision allows cross-namespace backend hijacking

Summary

Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10.

Severity

7.6 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:40 UTC

CWE

CWE-694 - Use of Multiple Resources with Duplicate Identifier

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13580	x_refsource_MISC
https://github.com/traefik/traefik/commit/a764166…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: >= 3.0.0, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71327",
                "options": [
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                    "Technical Impact": "total"
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          "lang": "en",
          "value": "Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik\u0027s Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace\u0027s backend. This issue is fixed in 3.6.25 and 3.7.10."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
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              "description": "CWE-694: Use of Multiple Resources with Duplicate Identifier",
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              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T16:38:11.600Z",
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          "name": "https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx",
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          "url": "https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx"
        },
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          "name": "https://github.com/traefik/traefik/pull/13580",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/traefik/traefik/pull/13580"
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          "name": "https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca844f9"
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          "name": "https://github.com/traefik/traefik/releases/tag/v3.6.25",
          "tags": [
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          "url": "https://github.com/traefik/traefik/releases/tag/v3.6.25"
        },
        {
          "name": "https://github.com/traefik/traefik/releases/tag/v3.7.10",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/traefik/traefik/releases/tag/v3.7.10"
        }
      ],
      "source": {
        "advisory": "GHSA-fgjj-px3w-67xx",
        "discovery": "UNKNOWN"
      },
      "title": "Traefik: Gateway API route identity collision allows cross-namespace backend hijacking"
    }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
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    "dateReserved": "2026-08-05T18:14:42.065Z",
    "dateUpdated": "2026-08-07T15:41:26.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-71326 (GCVE-0-2026-71326)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:34 – Updated: 2026-08-08 02:12

Title

Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing

Summary

Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik's BasicAuth middleware in pkg/middlewares/auth/basic_auth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and secret, allowing an attacker who has a valid credential and the stored hash to authenticate as an unconfigured username when headerField trusts the forwarded identity. This issue is fixed in 3.6.25 and 3.7.10.

Severity

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-08 02:12 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13572	x_refsource_MISC
https://github.com/traefik/traefik/commit/b5ace8e…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: >= 3.6.11, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71326",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-08T02:12:30.362636Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-08-08T02:12:44.764Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "traefik",
          "vendor": "traefik",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.6.11, \u003c 3.6.25"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.7.0, \u003c 3.7.10"
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        {
          "lang": "en",
          "value": "Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik\u0027s BasicAuth middleware in pkg/middlewares/auth/basic_auth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and secret, allowing an attacker who has a valid credential and the stored hash to authenticate as an unconfigured username when headerField trusts the forwarded identity. This issue is fixed in 3.6.25 and 3.7.10."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
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        "dateUpdated": "2026-08-06T16:34:23.931Z",
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          "name": "https://github.com/traefik/traefik/security/advisories/GHSA-6765-c87h-8mrf",
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          "url": "https://github.com/traefik/traefik/security/advisories/GHSA-6765-c87h-8mrf"
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        {
          "name": "https://github.com/traefik/traefik/pull/13572",
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          "url": "https://github.com/traefik/traefik/pull/13572"
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          "url": "https://github.com/traefik/traefik/commit/b5ace8eb5d6779980567f5e75efd2d9e08b7e350"
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          "url": "https://github.com/traefik/traefik/releases/tag/v3.6.25"
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        {
          "name": "https://github.com/traefik/traefik/releases/tag/v3.7.10",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/traefik/traefik/releases/tag/v3.7.10"
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      "source": {
        "advisory": "GHSA-6765-c87h-8mrf",
        "discovery": "UNKNOWN"
      },
      "title": "Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing"
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    "dateReserved": "2026-08-05T18:14:42.065Z",
    "dateUpdated": "2026-08-08T02:12:44.764Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-71325 (GCVE-0-2026-71325)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:24 – Updated: 2026-08-07 17:09

Title

Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef

Summary

Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10.

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:34 UTC

CWE

CWE-653 - Improper Isolation or Compartmentalization
CWE-863 - Incorrect Authorization

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/commit/65ebf4b…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.25	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: < 2.11.54 Affected: >= 3.0.0, < 3.6.25 Affected: >= 3.7.0, < 3.7.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71325",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-07T15:34:06.328209Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-07T17:09:50.885Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "traefik",
          "vendor": "traefik",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.11.54"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.6.25"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.7.0, \u003c 3.7.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
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            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
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              "description": "CWE-653: Improper Isolation or Compartmentalization",
              "lang": "en",
              "type": "CWE"
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          "descriptions": [
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              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
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        "dateUpdated": "2026-08-06T16:24:56.606Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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        },
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          "tags": [
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        },
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          "name": "https://github.com/traefik/traefik/releases/tag/v2.11.54",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/traefik/traefik/releases/tag/v2.11.54"
        },
        {
          "name": "https://github.com/traefik/traefik/releases/tag/v3.6.25",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/traefik/traefik/releases/tag/v3.6.25"
        },
        {
          "name": "https://github.com/traefik/traefik/releases/tag/v3.7.10",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/traefik/traefik/releases/tag/v3.7.10"
        }
      ],
      "source": {
        "advisory": "GHSA-62fc-8686-hfmq",
        "discovery": "UNKNOWN"
      },
      "title": "Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-71325",
    "datePublished": "2026-08-06T16:24:56.606Z",
    "dateReserved": "2026-08-05T18:14:42.065Z",
    "dateUpdated": "2026-08-07T17:09:50.885Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-71324 (GCVE-0-2026-71324)

Vulnerability from cvelistv5 – Published: 2026-08-06 15:56 – Updated: 2026-08-07 15:43

Title

Traefik: Cross-user response poisoning via proxied CONNECT on Traefik's shared backend keep-alive pool

Summary

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.53, 3.6.24, and 3.7.9, Traefik's default HTTP reverse proxy forwards a plain HTTP/2 or HTTP/3 CONNECT request and its body to an HTTP/1.1 upstream through a shared net/http.Transport. When the upstream answers the CONNECT with a keep-alive non-2xx response and does not drain the body, Traefik returns the desynchronized backend socket to its shared pool and reuses it for other clients. An unauthenticated attacker can use this behavior to make a different client read the attacker's smuggled response, which can include authenticated or private content from another request. The ForwardAuth middleware with forwardBody true and preserveRequestMethod true can re-issue a CONNECT with the buffered body attached, exposing the auth-client pool to the same desynchronization. This issue is fixed in 2.11.53, 3.6.24, and 3.7.9.

Severity

7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-07 15:43 UTC

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

GitHub_M mitre root

References

10 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	x_refsource_CONFIRM
https://github.com/traefik/traefik/pull/13542	x_refsource_MISC
https://github.com/traefik/traefik/pull/13543	x_refsource_MISC
https://github.com/traefik/traefik/pull/13556	x_refsource_MISC
https://github.com/traefik/traefik/commit/04d36f2…	x_refsource_MISC
https://github.com/traefik/traefik/commit/0807b6d…	x_refsource_MISC
https://github.com/traefik/traefik/commit/94a7508…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v…	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.6.24	x_refsource_MISC
https://github.com/traefik/traefik/releases/tag/v3.7.9	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: < 2.11.53 Affected: >= 3.0.0, < 3.6.24 Affected: >= 3.7.0, < 3.7.9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
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CVE-2026-67309 (GCVE-0-2026-67309)

Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 16:00

Title

Traefik v3.7.0 Path Traversal via RewriteTarget Authentication Bypass

Summary

Traefik versions >= v3.7.0 and <= v3.7.7 contain a path traversal vulnerability in the Kubernetes Ingress NGINX provider's RewriteTarget middleware (generated from the nginx.ingress.kubernetes.io/rewrite-target annotation). When an Ingress path uses a regex that captures attacker-controlled text without requiring a path separator (e.g., path /api(.*) with rewrite target /$1), a crafted request such as /api../admin matches the public router, is rewritten to a dot-segment traversal path (/../admin), and is forwarded without post-replacement normalization validation. A backend that normalizes dot segments resolves the path to a protected endpoint (e.g., /admin) reachable only through a separate router secured with BasicAuth, DigestAuth, or ForwardAuth, resulting in route-level authentication bypass. The issue is fixed in v3.7.8.

Severity

7.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 16:00 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/b93f02c…	patch
https://github.com/traefik/traefik/commit/69259c3…	patch
https://www.vulncheck.com/advisories/traefik-path…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , < 3.7.8 (semver) Unaffected: 3.7.8 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-07-16 00:00

Credits

B1gN0Se

Show details on NVD website

JSON

To clipboard

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CVE-2026-65602 (GCVE-0-2026-65602)

Vulnerability from cvelistv5 – Published: 2026-07-22 11:21 – Updated: 2026-07-24 21:35

Title

Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass

Summary

Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references). A low-privileged Kubernetes user in a namespace not listed in crossProviderNamespaces can set serversTransport: foo@file on an IngressRouteTCP service, causing Traefik to accept the forbidden cross-provider reference and use a file-provider TCPServersTransport — including privileged backend mTLS client certificates, SPIFFE identity, or PROXY-protocol settings. This is fixed in 3.6.23 and 3.7.7.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-22 13:04 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/26c96a3…	patch
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
traefik	traefik	Affected: 3.6.0 , < 3.6.23 (semver) Unaffected: 3.6.23 (semver)
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver)

Date Public

2026-07-09 00:00

Credits

CuB3y0nd james-yusuke

Show details on NVD website

JSON

To clipboard

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CVE-2026-65601 (GCVE-0-2026-65601)

Vulnerability from cvelistv5 – Published: 2026-07-22 11:21 – Updated: 2026-07-24 21:35

Title

Traefik before 3.7.7 Namespace Confusion via HTTPRoute ExtensionRef

Summary

Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules[].backendRefs[].filters[].extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route author holding a ReferenceGrant for a cross-namespace Service could therefore bind a Traefik Middleware from the backend namespace without a separate grant for that middleware, potentially injecting trusted reverse-proxy identity headers into downstream requests. The issue is fixed in version 3.7.7.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 13:51 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://github.com/traefik/traefik/commit/26c96a3…	patch
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver) cpe:2.3:a:traefik:traefik::::::::

Date Public

2026-07-09 00:00

Credits

CuB3y0nd

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-65601",
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CVE-2026-65600 (GCVE-0-2026-65600)

Vulnerability from cvelistv5 – Published: 2026-07-22 11:21 – Updated: 2026-07-23 19:08

Title

Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex

Summary

Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenticated remote attacker can send a crafted request (e.g. GET /api../admin) that produces an un-normalized path such as /../admin, which a backend that normalizes paths resolves to a protected route, bypassing authentication middleware. Fixed in v2.11.52, v3.6.23, and v3.7.7.

Severity

7.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 19:08 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/traefik/traefik/security/advis…	vendor-advisory
https://www.vulncheck.com/advisories/traefik-befo…	third-party-advisory

Impacted products

3 products

Vendor	Product	Version
traefik	traefik	Affected: 0 , < 2.11.52 (semver) Unaffected: 2.11.52 (semver)
traefik	traefik	Affected: 3.6.0 , < 3.6.23 (semver) Unaffected: 3.6.23 (semver)
traefik	traefik	Affected: 3.7.0 , < 3.7.7 (semver) Unaffected: 3.7.7 (semver)

Date Public

2026-07-09 00:00

Credits

C-h4ck-0

Show details on NVD website

JSON

To clipboard

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CERTFR-2026-AVI-1088

Vulnerability from certfr_avis - Published: 2026-08-27 - Updated: 2026-08-27

De multiples vulnérabilités ont été découvertes dans Traefik. Elles permettent à un attaquant de provoquer un déni de service à distance et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Traefik	Traefik	Traefik versions v3.x antérieures à v3.7.12
	Traefik	Traefik	Traefik versions antérieures à v2.11.56

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-rf44-j88r-hh8c	2026-08-27	vendor-advisory
Bulletin de sécurité Traefik GHSA-cjr6-pf59-jq29	2026-08-27	vendor-advisory
Bulletin de sécurité Traefik GHSA-7ghq-v6jf-g56c	2026-08-27	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions v3.x ant\u00e9rieures \u00e0 v3.7.12",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions ant\u00e9rieures \u00e0 v2.11.56",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [],
  "initial_release_date": "2026-08-27T00:00:00",
  "last_revision_date": "2026-08-27T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1088",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-27T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Traefik. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-08-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-rf44-j88r-hh8c",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-rf44-j88r-hh8c"
    },
    {
      "published_at": "2026-08-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-cjr6-pf59-jq29",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-cjr6-pf59-jq29"
    },
    {
      "published_at": "2026-08-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-7ghq-v6jf-g56c",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-7ghq-v6jf-g56c"
    }
  ]
}

CERTFR-2026-AVI-1070

Vulnerability from certfr_avis - Published: 2026-08-21 - Updated: 2026-08-21

De multiples vulnérabilités ont été découvertes dans Traefik. Certaines d'entre elles permettent à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Traefik	Traefik	Traefik versions v3.x antérieures à v3.7.11
	Traefik	Traefik	Traefik versions antérieures à v2.11.55

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-g55h-rg46-x9c5	2026-08-21	vendor-advisory
Bulletin de sécurité Traefik GHSA-5w68-77r2-r64c	2026-08-21	vendor-advisory
Bulletin de sécurité Traefik GHSA-m6wx-622r-48r9	2026-08-21	vendor-advisory
Bulletin de sécurité Traefik GHSA-j994-9gqj-9hwq	2026-08-21	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions v3.x ant\u00e9rieures \u00e0 v3.7.11",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions ant\u00e9rieures \u00e0 v2.11.55",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [],
  "initial_release_date": "2026-08-21T00:00:00",
  "last_revision_date": "2026-08-21T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1070",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-21T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Traefik. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-08-21",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-g55h-rg46-x9c5",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-g55h-rg46-x9c5"
    },
    {
      "published_at": "2026-08-21",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-5w68-77r2-r64c",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-5w68-77r2-r64c"
    },
    {
      "published_at": "2026-08-21",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-m6wx-622r-48r9",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-m6wx-622r-48r9"
    },
    {
      "published_at": "2026-08-21",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-j994-9gqj-9hwq",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-j994-9gqj-9hwq"
    }
  ]
}

CERTFR-2026-AVI-0964

Vulnerability from certfr_avis - Published: 2026-08-04 - Updated: 2026-08-04

De multiples vulnérabilités ont été découvertes dans Traefik. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Traefik	Traefik	Traefik versions 3.x antérieures à 3.6.25
Traefik	Traefik	Traefik versions antérieures à 2.11.54
Traefik	Traefik	Traefik versions 3.7.x antérieures à 3.7.10

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-62fc-8686-hfmq	2026-08-03	vendor-advisory
Bulletin de sécurité Traefik GHSA-6765-c87h-8mrf	2026-08-03	vendor-advisory
Bulletin de sécurité Traefik GHSA-fgjj-px3w-67xx	2026-08-03	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions 3.x ant\u00e9rieures \u00e0 3.6.25",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions ant\u00e9rieures \u00e0 2.11.54",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions 3.7.x ant\u00e9rieures \u00e0 3.7.10",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [],
  "initial_release_date": "2026-08-04T00:00:00",
  "last_revision_date": "2026-08-04T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0964",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-04T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Traefik. Elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-08-03",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-62fc-8686-hfmq",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-62fc-8686-hfmq"
    },
    {
      "published_at": "2026-08-03",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-6765-c87h-8mrf",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-6765-c87h-8mrf"
    },
    {
      "published_at": "2026-08-03",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-fgjj-px3w-67xx",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx"
    }
  ]
}

CERTFR-2026-AVI-0936

Vulnerability from certfr_avis - Published: 2026-07-27 - Updated: 2026-07-27

Une vulnérabilité a été découverte dans Traefik. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Traefik	Traefik	Traefik versions v3.6.x antérieures à v3.6.24
Traefik	Traefik	Traefik versions v3.7.x antérieures à v3.7.9
Traefik	Traefik	Traefik versions antérieures à v2.11.53

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-3ccp-42pg-hgv6

2026-07-27

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions v3.6.x ant\u00e9rieures \u00e0 v3.6.24",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions v3.7.x ant\u00e9rieures \u00e0 v3.7.9",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions ant\u00e9rieures \u00e0 v2.11.53",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [],
  "initial_release_date": "2026-07-27T00:00:00",
  "last_revision_date": "2026-07-27T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0936",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-07-27T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Traefik. Elle permet \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Vuln\u00e9rabilit\u00e9 dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-07-27",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-3ccp-42pg-hgv6",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-3ccp-42pg-hgv6"
    }
  ]
}

CERTFR-2026-AVI-0893

Vulnerability from certfr_avis - Published: 2026-07-16 - Updated: 2026-07-16

Une vulnérabilité a été découverte dans Traefik. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Traefik	Traefik	Traefik versions 3.7.x antérieures à 3.7.8

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-8rxv-jg7p-wvg3

2026-07-16

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions 3.7.x ant\u00e9rieures \u00e0 3.7.8",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [],
  "initial_release_date": "2026-07-16T00:00:00",
  "last_revision_date": "2026-07-16T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0893",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-07-16T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans Traefik. Elle permet \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Vuln\u00e9rabilit\u00e9 dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-07-16",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-8rxv-jg7p-wvg3",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-8rxv-jg7p-wvg3"
    }
  ]
}

CERTFR-2026-AVI-0851

Vulnerability from certfr_avis - Published: 2026-07-09 - Updated: 2026-07-28

De multiples vulnérabilités ont été découvertes dans Traefik. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Traefik	Traefik	Traefik versions antérieures à 2.11.52
Traefik	Traefik	Traefik versions 3.7.x antérieures à 3.7.7
Traefik	Traefik	Traefik versions 3.6.x antérieures à 3.6.23

References

Title

Publication Time

Tags

Bulletin de sécurité Traefik GHSA-qq9q-x9w4-chhj	2026-07-09	vendor-advisory
Bulletin de sécurité Traefik GHSA-cxjq-mrr5-89rv	2026-07-09	vendor-advisory
Bulletin de sécurité Traefik GHSA-42cj-m3vj-89wv	2026-07-09	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Traefik versions ant\u00e9rieures \u00e0 2.11.52",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions 3.7.x ant\u00e9rieures \u00e0 3.7.7",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    },
    {
      "description": "Traefik versions 3.6.x ant\u00e9rieures \u00e0 3.6.23",
      "product": {
        "name": "Traefik",
        "vendor": {
          "name": "Traefik",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-65601",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-65601"
    },
    {
      "name": "CVE-2026-65602",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-65602"
    }
  ],
  "initial_release_date": "2026-07-09T00:00:00",
  "last_revision_date": "2026-07-28T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0851",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-07-09T00:00:00.000000"
    },
    {
      "description": "Ajout des identifiants CVE-2026-65601 et CVE-2026-65602.",
      "revision_date": "2026-07-28T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Traefik. Elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Traefik",
  "vendor_advisories": [
    {
      "published_at": "2026-07-09",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-qq9q-x9w4-chhj",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-qq9q-x9w4-chhj"
    },
    {
      "published_at": "2026-07-09",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-cxjq-mrr5-89rv",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-cxjq-mrr5-89rv"
    },
    {
      "published_at": "2026-07-09",
      "title": "Bulletin de s\u00e9curit\u00e9 Traefik GHSA-42cj-m3vj-89wv",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-42cj-m3vj-89wv"
    }
  ]
}

Find a vulnerability

Search criteria

152 vulnerabilities by Traefik

CVE-2026-85597 (GCVE-0-2026-85597)

CVE-2026-85596 (GCVE-0-2026-85596)

CVE-2026-85595 (GCVE-0-2026-85595)

CVE-2026-85594 (GCVE-0-2026-85594)

CVE-2026-71327 (GCVE-0-2026-71327)

CVE-2026-71326 (GCVE-0-2026-71326)

CVE-2026-71325 (GCVE-0-2026-71325)

CVE-2026-71324 (GCVE-0-2026-71324)

CVE-2026-67309 (GCVE-0-2026-67309)

CVE-2026-65602 (GCVE-0-2026-65602)

CVE-2026-65601 (GCVE-0-2026-65601)

CVE-2026-65600 (GCVE-0-2026-65600)

CVE-2026-85597 (GCVE-0-2026-85597)

CVE-2026-85596 (GCVE-0-2026-85596)

CVE-2026-85595 (GCVE-0-2026-85595)

CVE-2026-85594 (GCVE-0-2026-85594)

CVE-2026-71327 (GCVE-0-2026-71327)

CVE-2026-71326 (GCVE-0-2026-71326)

CVE-2026-71325 (GCVE-0-2026-71325)

CVE-2026-71324 (GCVE-0-2026-71324)

CVE-2026-67309 (GCVE-0-2026-67309)

CVE-2026-65602 (GCVE-0-2026-65602)

CVE-2026-65601 (GCVE-0-2026-65601)

CVE-2026-65600 (GCVE-0-2026-65600)

CERTFR-2026-AVI-1088

Solutions

CERTFR-2026-AVI-1070

Solutions

CERTFR-2026-AVI-0964

Solutions

CERTFR-2026-AVI-0936

Solutions

CERTFR-2026-AVI-0893

Solutions

CERTFR-2026-AVI-0851

Solutions