cvedb.io
CVE-2026-40938
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-21T21:16:46.283 · Last modified 2026-06-30T03:19:21.473

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, the git resolver's revision parameter is passed directly as a positional argument to git fetch without any validation that it does not begin with a - character. Because git parses flags from mixed positional arguments, an attacker can inject arbitrary git fetch flags such as --upload-pack=<binary>. Combined with the validateRepoURL function explicitly permitting URLs that begin with / (local filesystem paths), a tenant who can submit ResolutionRequest objects can chain these two behaviors to execute an arbitrary binary on the resolver pod. The tekton-pipelines-resolvers ServiceAccount holds cluster-wide get/list/w

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.