CVE-2026-33211: Linuxfoundation Tekton Pipelines

Critical severity, CVSS 9.6. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Linuxfoundation Tekton Pipelines: from 1.1.0, before 1.3.3 (fixed in 1.3.3); from 1.4.0, before 1.6.1 (fixed in 1.6.1); from 1.7.0, before 1.9.2 (fixed in 1.9.2); from 1.10.0, before 1.10.2 (fixed in 1.10.2); version 1.0.0 only

Published 2026-03-24. Last modified 2026-09-07.