{"id":"CVE-2026-25542","revision":"c5e3d53389e24765b1c4b0c43e161b8f","records":[{"revision":"c5e3d53389e24765b1c4b0c43e161b8f","observedAt":"2026-10-27T07:23:16.329+00:00","statement":{"source":"nvd","id":"CVE-2026-25542","aliases":[],"title":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 0.43.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, trusted resources verification policies match a resource sou…","description":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 0.43.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, trusted resources verification policies match a resource source string (refSource.URI) against spec.resources[].pattern using regexp.MatchString. In Go, regexp.MatchString reports a match if the pattern matches anywhere in the string, so common unanchored patterns (including examples in tekton documentation) can be bypassed by attacker-controlled source strings that contain the trusted pattern as a substring. This can cause an unintended policy match and change which verification mode/keys apply. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.","state":0,"publishedAt":"2026-04-21T17:16:24.213+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/tektoncd/pipeline/commit/b8905600322aa86327baae0a7c04d6cf1207362a","https://github.com/tektoncd/pipeline/security/advisories/GHSA-rmx9-2pp3-xhcr"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-25542","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-185"],"productCriteria":["cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-04-21T17:16:24.213","lastModified":"2026-10-26T22:10:00.163"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-25542","identifiers":["CVE-2026-25542"]},"retained":false,"historicalAffected":[]}],"coverage":[]}