{"id":"CVE-2026-40923","revision":"8ef94a9a9a514b929d7dd8de5ed268fe","records":[{"revision":"8ef94a9a9a514b929d7dd8de5ed268fe","observedAt":"2026-10-25T09:17:30.114+00:00","statement":{"source":"nvd","id":"CVE-2026-40923","aliases":[],"title":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, a validation bypass in the VolumeMount path restriction allow…","description":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, a validation bypass in the VolumeMount path restriction allows mounting volumes under restricted /tekton/ internal paths by using .. path traversal components. The restriction check uses strings.HasPrefix without filepath.Clean, so a path like /tekton/home/../results passes validation but resolves to /tekton/results at runtime. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.","state":0,"publishedAt":"2026-04-21T21:16:45.543+00:00","modifiedAt":"2026-06-17T10:45:53.443+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:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/tektoncd/pipeline/releases/tag/v1.11.1","https://github.com/tektoncd/pipeline/security/advisories/GHSA-rx35-6rhx-7858"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40923","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Modified","weaknesses":["CWE-22"],"productCriteria":["cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-04-21T21:16:45.543","lastModified":"2026-06-17T10:45:53.443"},"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-2026-40923","identifiers":["CVE-2026-40923"]},"retained":false,"historicalAffected":[]}],"coverage":[]}