7.7 High

CVE-2026-40161 Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines

Description

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, 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. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.

Affected products and versions

Product	Affected versions	Fixed in
pipeline 1.10	1.10.0 → < 1.11.1	1.11.1
pipeline 1.7	1.7.0 → < 1.9.3	1.9.3
pipeline 1.4	1.4.0 → < 1.6.2	1.6.2
pipeline 1.2	1.2.0 → < 1.3.4	1.3.4
pipeline 1.0	1.0.0 → < 1.0.2	1.0.2