CVE-2026-33211
Last modified
CVE-2026-33211 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. 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. EPSS estimates a 0.48% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Tekton Pipelines | >= 1.1.0, < 1.3.3 |
| Linuxfoundation | Tekton Pipelines | >= 1.4.0, < 1.6.1 |
| Linuxfoundation | Tekton Pipelines | >= 1.7.0, < 1.9.2 |
| Linuxfoundation | Tekton Pipelines | >= 1.10.0, < 1.10.2 |
| Linuxfoundation | Tekton Pipelines | 1.0.0 |
References
- https://github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5cPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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