cvedb.io
CVE-2026-25542
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-04-21T17:16:24.213 · Last modified 2026-06-17T10:24:49.533

Summary

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.

Affected products

linuxfoundation — tekton_pipelines

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.