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(CVE-2026-39821)
Vulnerability from cleanstart – Published: 2026-09-01 11:17 – Updated: 2026-09-18 11:59 – Source website
Withdrawn 2026-09-18
VLAI
Summary
Security fixes in tekton-chains-fips 0.25.2-r1
Details
Package tekton-chains-fips version 0.25.2-r1 fixes 31 vulnerabilities: CVE-2026-39821, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858...
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"package": {
"ecosystem": "CleanStart",
"name": "tekton-chains-fips"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.25.2-r1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.25.2-r1"
]
}
],
"credits": [],
"database_specific": {},
"details": "Package tekton-chains-fips version 0.25.2-r1 fixes 31 vulnerabilities: CVE-2026-39821, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853, CVE-2026-56858...",
"id": "CLEANSTART-2026-NJ73427",
"modified": "2026-09-18T11:59:01.768079Z",
"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 0.25.2-r1",
"upstream": [
"CVE-2026-39821",
"CVE-2026-33818",
"CVE-2026-46600",
"CVE-2026-56853",
"CVE-2026-56858",
"CVE-2026-56859",
"CVE-2026-56860",
"CVE-2026-56862",
"ghsa-gcjh-h69q-9w9g",
"ghsa-pmwq-pjrm-6p5r",
"CVE-2026-49478",
"CVE-2026-48702",
"CVE-2026-54787",
"CVE-2026-49834",
"CVE-2026-49835",
"CVE-2026-39984",
"CVE-2026-40161",
"CVE-2026-40938",
"CVE-2026-25542",
"CVE-2026-40923",
"CVE-2026-40924",
"CVE-2026-2303",
"CVE-2026-39883",
"ghsa-hrxh-6v49-42gf",
"CVE-2026-56865",
"CVE-2026-56864",
"ghsa-259r-337f-4rfw",
"ghsa-rjr7-jggh-pgcp",
"ghsa-3fxj-6jh8-hvhx",
"ghsa-9g5q-2w5x-hmxf",
"CVE-2026-41178"
],
"withdrawn": "2026-09-18T11:59:01.768079Z"
}
CVE-2026-41178 (GCVE-0-2026-41178)
Vulnerability from cvelistv5 – Published: 2026-06-04 14:38 – Updated: 2026-06-04 15:46
VLAI
EPSS
VEX
Title
OpenTelemetry-Go's baggage parsing no longer caps raw header length
Summary
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 15:46 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_CONFIRM |
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | go.opentelemetry.io/otel/baggage |
Affected:
= 1.41.0
Affected: = 1.43.0 |
|
| open-telemetry | go.opentelemetry.io/otel/propagation |
Affected:
= 1.41.0
Affected: = 1.43.0 |
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CVE-2026-46600 (GCVE-0-2026-46600)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:18 – Updated: 2026-08-14 15:46
VLAI
EPSS
VEX
Title
Parsing an invalid SVCB or HTTPS RR can panic in golang.org/x/net/dns/dnsmessage
Summary
Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 15:00 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net |
Affected:
1.26.0-0 , < 1.26.6
(semver)
Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
|
| golang.org/x/net | golang.org/x/net/dns/dnsmessage |
Affected:
0 , < 0.56.0
(semver)
|
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"packageName": "net",
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},
{
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},
{
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},
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},
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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-2026-49834 (GCVE-0-2026-49834)
Vulnerability from cvelistv5 – Published: 2026-07-17 19:20 – Updated: 2026-07-17 19:42
VLAI
EPSS
VEX
Title
sigstore-go: Multi-log threshold bypass via single compromised log
Summary
sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLog(N>1) or WithSignedCertificateTimestamps(N>1) counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised transparency log or CT log to satisfy multi-log threshold requirements and defeat the multi-log policy. This issue is fixed in version 1.2.0.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 19:42 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sigstore/sigstore-go/security/… | x_refsource_CONFIRM |
| https://github.com/sigstore/sigstore-go/pull/633 | x_refsource_MISC |
| https://github.com/sigstore/sigstore-go/commit/db… | x_refsource_MISC |
| https://github.com/sigstore/sigstore-go/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sigstore | sigstore-go |
Affected:
< 1.2.0
|
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CVE-2026-49835 (GCVE-0-2026-49835)
Vulnerability from cvelistv5 – Published: 2026-07-17 18:16 – Updated: 2026-07-17 19:45
VLAI
EPSS
VEX
Title
Sigstore Timestamp Authority: OOM due to unbounded metric label cardinality
Summary
Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency and request count metric vectors before routing, allowing an unauthenticated remote attacker to issue requests with random paths such as /api/v1/timestamp/<uuid> or random HTTP methods and create unbounded permanent time-series entries that exhaust memory. This issue is fixed in version 2.1.0.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 19:45 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/sigstore/timestamp-authority/s… | x_refsource_CONFIRM |
| https://github.com/sigstore/timestamp-authority/c… | x_refsource_MISC |
| https://github.com/sigstore/timestamp-authority/r… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sigstore | timestamp-authority |
Affected:
< 2.1.0
|
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CVE-2026-54787 (GCVE-0-2026-54787)
Vulnerability from cvelistv5 – Published: 2026-07-31 21:58 – Updated: 2026-07-31 23:36
VLAI
EPSS
VEX
Title
sigstore-go fails to check signature timestamps against a signing key's validity period
Summary
sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.1, sigstore-go does not check a bundle signing timestamp against the validity window of an ExpiringKey wrapping a self-managed long-lived signing key without a certificate, which can allow an attacker holding expired key material to sign accepted bundles. This issue is fixed in version 1.2.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 23:35 UTC
CWE
- CWE-324 - Use of a Key Past its Expiration Date
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/sigstore/sigstore-go/security/… | x_refsource_CONFIRM |
| https://github.com/sigstore/sigstore-go/pull/642 | x_refsource_MISC |
| https://github.com/sigstore/sigstore-go/commit/45… | x_refsource_MISC |
| https://github.com/sigstore/sigstore-go/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sigstore | sigstore-go |
Affected:
< 1.2.1
|
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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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},
{
"name": "Server.Serve"
},
{
"name": "Server.ServeTLS"
}
],
"vendor": "Go standard library",
"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"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T21:58:53.092Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
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"url": "https://go.dev/issue/80205"
},
{
"url": "https://go.dev/cl/795540"
},
{
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6089"
}
],
"title": "Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http"
}
},
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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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"title": "CISA ADP Vulnrichment"
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],
"cna": {
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"collectionURL": "https://pkg.go.dev",
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"packageName": "html/template",
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},
{
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},
{
"name": "Template.ExecuteTemplate"
}
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"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6091"
}
],
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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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"attackVector": "NETWORK",
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"scope": "UNCHANGED",
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],
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"timestamp": "2026-08-14T15:21:09.615961Z",
"version": "2.0.3"
},
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "encoding/xml",
"product": "encoding/xml",
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"name": "Decoder.push"
},
{
"name": "Decoder.pop"
},
{
"name": "Decoder.RawToken"
},
{
"name": "Decoder.unmarshalPath"
},
{
"name": "Decoder.unmarshal"
},
{
"name": "Decoder.Decode"
},
{
"name": "Decoder.DecodeElement"
},
{
"name": "Decoder.Skip"
},
{
"name": "Decoder.Token"
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{
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}
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"url": "https://pkg.go.dev/vuln/GO-2026-6088"
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"title": "Add recursion depth guard during decode in encoding/xml"
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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