CVE-2026-33211
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- EPSS
- 0.57% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- linuxfoundation/tekton pipelines
- Source
- security-advisories@github.com
References
- https://github.com/tektoncd/pipeline/commit/10fa538f9a2b6d01c75138f1ed7ba3da0e34687cPatch
- https://github.com/tektoncd/pipeline/commit/318006c4e3a5Patch
- https://github.com/tektoncd/pipeline/commit/3ca7bc6e6dd1d97f80b84f78370d91edaf023cbdPatch
- https://github.com/tektoncd/pipeline/commit/961388fcf3374bc7656d28ab58ca84987e0a75aePatch
- https://github.com/tektoncd/pipeline/commit/b1fee65b88aa969069c14c120045e97c37d9ee5ePatch
- https://github.com/tektoncd/pipeline/commit/cdb4e1e97a4f3170f9bc2cbfff83a6c8107bc3dbPatch
- https://github.com/tektoncd/pipeline/commit/ec7755031a183b345cf9e64bea0e0505c1b9cb78Patch
- https://github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5cPatch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:10026
- https://access.redhat.com/errata/RHSA-2026:10066
- https://access.redhat.com/errata/RHSA-2026:10125
- https://access.redhat.com/errata/RHSA-2026:10155
- https://access.redhat.com/errata/RHSA-2026:10158
- https://access.redhat.com/errata/RHSA-2026:21931
- https://access.redhat.com/errata/RHSA-2026:21932
- https://access.redhat.com/errata/RHSA-2026:24484
- https://access.redhat.com/errata/RHSA-2026:6166
- https://access.redhat.com/errata/RHSA-2026:6170
- https://access.redhat.com/security/cve/CVE-2026-33211
- https://bugzilla.redhat.com/show_bug.cgi?id=2450554
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33211.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.