CVE-2026-40161

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.7 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

April 21, 2026

Last Modified

April 22, 2026

CWE ID

CWE-201

Source

NVD

Vendor

tektoncd

Product

pipeline

External References

https://github.com/tektoncd/pipeline/issues/9608
https://github.com/tektoncd/pipeline/issues/9609
https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff

CVE-2026-40161

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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