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Vulnerability from cleanstart
Published
2026-09-01 11:17
Modified
2026-09-02 06:40
Summary
Security fixes in tekton-chains-fips 0.24.0-r1
Details
Package tekton-chains-fips version 0.24.0-r1 fixes 26 vulnerabilities: CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859...
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"package": {
"ecosystem": "Alpine",
"name": "tekton-chains-fips"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.24.0-r1"
}
],
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}
],
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]
}
],
"credits": [],
"database_specific": {},
"details": "Package tekton-chains-fips version 0.24.0-r1 fixes 26 vulnerabilities: CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859...",
"id": "CLEANSTART-2026-GR84261",
"modified": "2026-09-02T06:40:43Z",
"published": "2026-09-01T11:17:16Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tektoncd/chains"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in tekton-chains-fips 0.24.0-r1",
"upstream": [
"CVE-2026-33818",
"CVE-2026-46600",
"CVE-2026-56853",
"CVE-2026-56858",
"CVE-2026-56859",
"CVE-2026-56860",
"CVE-2026-56862",
"CVE-2026-39821",
"ghsa-gcjh-h69q-9w9g",
"ghsa-pmwq-pjrm-6p5r",
"CVE-2026-22703",
"CVE-2026-49478",
"CVE-2026-48702",
"CVE-2025-66564",
"CVE-2026-25542",
"CVE-2026-33022",
"CVE-2026-2303",
"CVE-2026-39883",
"ghsa-hrxh-6v49-42gf",
"CVE-2026-56864",
"CVE-2026-56865",
"ghsa-259r-337f-4rfw",
"ghsa-3fxj-6jh8-hvhx",
"ghsa-9g5q-2w5x-hmxf",
"ghsa-rjr7-jggh-pgcp",
"CVE-2026-41178"
]
}
CVE-2026-48702 (GCVE-0-2026-48702)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:14 – Updated: 2026-08-13 15:16
VLAI
EPSS
VEX
Title
Rekor has an OOM Condition due to Unbounded gzip Decompression in Alpine APK Parsing Logic
Summary
Rekor is a software supply chain transparency log. Starting in version 0.3.0 and prior to version 1.5.2, the `Package.Unmarshal()` function in `pkg/types/alpine/apk.go` decompresses the signature and control gzip members of an APK file into in-memory buffers without bounding the total decompressed size. The existing `max_apk_metadata_size` check (default 1MB) is only applied to individual tar entry header sizes after decompression completes, so it does not prevent a decompression bomb from consuming unbounded heap memory. An attacker can craft a gzip stream that compresses at a ~1000:1 ratio (e.g., 2MB compressed zeros → 2GB decompressed). When submitted as spec.package.content in an Alpine `ProposedEntry`, the server decompresses the full payload into memory during request processing, triggering a fatal Go runtime out-of-memory error or OS OOM-kill that cannot be caught by the server's recover() middleware. This is reachable via two unauthenticated endpoints, `POST /api/v1/log/entries (createLogEntry)` and `POST /api/v1/log/entries/retrieve (searchLogQuery)`. Both invoke `V001Entry.Canonicalize()` → `fetchExternalEntities()` → `apk.Unmarshal(packageData)`, which performs the unbounded decompression. Version 1.5.2 patches the issue. There is no effective workaround. Setting `max_request_body_size` reduces but does not eliminate exposure due to the ~1000:1 compression ratio (a 1MB body limit still allows ~1GB heap allocation). Setting `max_apk_metadata_size` has no effect on this vulnerability since the check is applied after decompression.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:12 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sigstore/rekor/security/adviso… | x_refsource_CONFIRM |
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CVE-2026-49478 (GCVE-0-2026-49478)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:08 – Updated: 2026-08-15 03:14
VLAI
EPSS
VEX
Title
Fulcio has OIDC Discovery Redirect Following Allows SSRF and JWKS Substitution for Meta-Issuer Paths, with Kubernetes Service-Account Token Leakage
Summary
Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and attach Kubernetes ServiceAccount tokens during OIDC discovery, allowing a malicious or compromised issuer to perform blind SSRF, substitute and cache malicious JWKS keys, or disclose ServiceAccount tokens to external hosts. Version 1.8.6 blocks cross-host redirects, restricts token injection, and restricts local token loading. No known workarounds are available.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-15 03:14 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sigstore/fulcio/security/advis… | x_refsource_CONFIRM |
| https://github.com/sigstore/fulcio/pull/2354 | x_refsource_MISC |
| https://github.com/sigstore/fulcio/commit/378c654… | x_refsource_MISC |
| https://github.com/sigstore/fulcio/releases/tag/v1.8.6 | x_refsource_MISC |
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CVE-2026-56853 (GCVE-0-2026-56853)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:23
VLAI
EPSS
VEX
Title
Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http
Summary
When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:22 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
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CVE-2026-56858 (GCVE-0-2026-56858)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:32
VLAI
EPSS
VEX
Title
Fix Javascript regexp context tracking in html/template
Summary
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:31 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
Credits
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{
"lang": "en",
"value": "Previously, pathological inputs could close an unescaped \u0027/\u0027 early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS."
}
],
"problemTypes": [
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"descriptions": [
{
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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}
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}
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},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6091"
}
],
"title": "Fix Javascript regexp context tracking in html/template"
}
},
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CVE-2026-56859 (GCVE-0-2026-56859)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:21
VLAI
EPSS
VEX
Title
Add recursion depth guard during decode in encoding/xml
Summary
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:21 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | encoding/xml |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
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"name": "Decoder.push"
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"name": "Decoder.pop"
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"name": "Decoder.unmarshal"
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"name": "Decoder.Decode"
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CVE-2026-56860 (GCVE-0-2026-56860)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:14
VLAI
EPSS
VEX
Title
Avoid quadratic complexity in resolvePath in net/url
Summary
Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:14 UTC
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/url |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
{
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"title": "CISA ADP Vulnrichment"
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},
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"name": "URL.Parse"
},
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}
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CVE-2026-56862 (GCVE-0-2026-56862)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:29
VLAI
EPSS
VEX
Title
Limit handshake messages we are willing to accept post-handshake in crypto/tls
Summary
Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:27 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | crypto/tls |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
Credits
{
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"attackVector": "NETWORK",
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},
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}
],
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"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "crypto/tls",
"product": "crypto/tls",
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{
"name": "Conn.readRecordOrCCS"
},
{
"name": "Conn.Handshake"
},
{
"name": "Conn.HandshakeContext"
},
{
"name": "Conn.Read"
},
{
"name": "Conn.Write"
},
{
"name": "Dial"
},
{
"name": "DialWithDialer"
},
{
"name": "Dialer.Dial"
},
{
"name": "Dialer.DialContext"
},
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"name": "QUICConn.HandleData"
},
{
"name": "QUICConn.Start"
}
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"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
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"url": "https://pkg.go.dev/vuln/GO-2026-6090"
}
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CVE-2026-56864 (GCVE-0-2026-56864)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:16
VLAI
EPSS
VEX
Title
Ignore unrelated, unauthenticated hashes in Lookup in golang.org/x/mod/sumdb
Summary
A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious module content that cannot be detected by evaluating the transparency log. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ && go mod tidy
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:16 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go toolchain | cmd/go |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
|
| golang.org/x/mod | golang.org/x/mod/sumdb |
Affected:
0 , < 0.40.0
(semver)
|
Credits
{
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{
"metrics": [
{
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],
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"version": "2.0.3"
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},
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"programRoutines": [
{
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],
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}
],
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{
"descriptions": [
{
"description": "CWE-347: Improper Verification of Cryptographic Signature",
"lang": "en"
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]
}
],
"providerMetadata": {
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},
{
"url": "https://go.dev/cl/815000"
},
{
"url": "https://go.dev/cl/815020"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6180"
}
],
"title": "Ignore unrelated, unauthenticated hashes in Lookup in golang.org/x/mod/sumdb"
}
},
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CVE-2026-56865 (GCVE-0-2026-56865)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:34
VLAI
EPSS
VEX
Title
Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog
Summary
A malicious GOPROXY was previously capable of forging up to two sumdb tiles that allow for a requested module to bypass the GOSUMDB check and persist attacker-controlled module content to a local Go module cache. This attack allows for a malicious GOPROXY to serve malicious module content that cannot be detected by evaluating the transparency log. All tiles are now correctly verified against their parents. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ && go mod tidy
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:33 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go toolchain | cmd/go |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
|
| golang.org/x/mod | golang.org/x/mod/sumdb/tlog |
Affected:
0 , < 0.40.0
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-56865",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-14T15:33:28.143873Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-347",
"description": "CWE-347 Improper Verification of Cryptographic Signature",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-14T15:34:17.235Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "cmd/go",
"product": "cmd/go",
"vendor": "Go toolchain",
"versions": [
{
"lessThan": "1.25.13",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.26.6",
"status": "affected",
"version": "1.26.0-0",
"versionType": "semver"
},
{
"lessThan": "1.27.0-rc.3",
"status": "affected",
"version": "1.27.0-0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/mod/sumdb/tlog",
"product": "golang.org/x/mod/sumdb/tlog",
"programRoutines": [
{
"name": "tileHashReader.ReadHashes"
}
],
"vendor": "golang.org/x/mod",
"versions": [
{
"lessThan": "0.40.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Filippo Valsorda (Geomys)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A malicious GOPROXY was previously capable of forging up to two sumdb tiles that allow for a requested module to bypass the GOSUMDB check and persist attacker-controlled module content to a local Go module cache. This attack allows for a malicious GOPROXY to serve malicious module content that cannot be detected by evaluating the transparency log. All tiles are now correctly verified against their parents. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ \u0026\u0026 go mod tidy"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-347: Improper Verification of Cryptographic Signature",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T21:58:53.475Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/80744"
},
{
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"url": "https://go.dev/cl/814960"
},
{
"url": "https://go.dev/cl/815020"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6179"
}
],
"title": "Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-56865",
"datePublished": "2026-08-13T21:58:53.475Z",
"dateReserved": "2026-06-23T15:10:49.354Z",
"dateUpdated": "2026-08-14T15:34:17.235Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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