Vulnerability Description
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2, the Tekton Pipelines git resolver is vulnerable to path traversal via the `pathInRepo` parameter. A tenant with permission to create `ResolutionRequests` (e.g. by creating `TaskRuns` or `PipelineRuns` that use the git resolver) can read arbitrary files from the resolver pod's filesystem, including ServiceAccount tokens. The file contents are returned base64-encoded in `resolutionrequest.status.data`. Versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2 contain a patch.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Tekton Pipelines | >= 1.1.0, < 1.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/tektoncd/pipeline/commit/10fa538f9a2b6d01c75138f1ed7ba3da0e34Patch
- https://github.com/tektoncd/pipeline/commit/318006c4e3a5Patch
- https://github.com/tektoncd/pipeline/commit/3ca7bc6e6dd1d97f80b84f78370d91edaf02Patch
- https://github.com/tektoncd/pipeline/commit/961388fcf3374bc7656d28ab58ca84987e0aPatch
- https://github.com/tektoncd/pipeline/commit/b1fee65b88aa969069c14c120045e97c37d9Patch
- https://github.com/tektoncd/pipeline/commit/cdb4e1e97a4f3170f9bc2cbfff83a6c8107bPatch
- https://github.com/tektoncd/pipeline/commit/ec7755031a183b345cf9e64bea0e0505c1b9Patch
- https://github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5cPatchVendor Advisory
FAQ
What is CVE-2026-33211?
CVE-2026-33211 is a vulnerability with a CVSS score of 9.6 (CRITICAL). Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2, the Tekton Pipelines ...
How severe is CVE-2026-33211?
CVE-2026-33211 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-33211?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Tekton Pipelines.