cvedb.io
CVE-2026-40923
MEDIUM · CVSS 5.4
EPSS exploitation probability: 0%
Published 2026-04-21T21:16:45.543 · Last modified 2026-06-17T10:45:53.443

Summary

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.

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.