PT-2026-34008 · Tektoncd · Pipeline

Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-40161

NVD

CVSS v3.1

7.7

High

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

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.

Fix

Weakness Enumeration

CWE-201

Related Identifiers

CVE-2026-40161

Affected Products

Pipeline

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-40161 · Security Note
• https://github.com/tektoncd/pipeline/issues/9608 · Note
• https://twitter.com/CVEnew/status/2046636245384610253 · Twitter Post
• https://github.com/tektoncd/pipeline/issues/9609 · Note
• https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff · Note