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High severity7.7NVD Advisory· Published Apr 21, 2026· Updated May 21, 2026

CVE-2026-40161

CVE-2026-40161

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/tektoncd/pipelineGo
>= 1.0.0, < 1.0.21.0.2
github.com/tektoncd/pipelineGo
>= 1.2.0, < 1.3.41.3.4
github.com/tektoncd/pipelineGo
>= 1.4.0, < 1.6.21.6.2
github.com/tektoncd/pipelineGo
>= 1.7.0, < 1.9.31.9.3
github.com/tektoncd/pipelineGo
>= 1.10.0, < 1.11.11.11.1

Affected products

123

Patches

Vulnerability mechanics

References

5

News mentions

0

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