CVE-2026-40161

Description

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to 1.10.0, the Tekton Pipelines git resolver in API mode sends the system-configured Git API token to a user-controlled serverURL when the user omits the token parameter. A tenant with TaskRun or PipelineRun create permission can exfiltrate the shared API token (GitHub PAT, GitLab token, etc.) by pointing serverURL to an attacker-controlled endpoint.

References

https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff

https://github.com/tektoncd/pipeline/issues/9609

https://github.com/tektoncd/pipeline/issues/9608

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3