CVE-2026-40161

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/tektoncd/pipeline/issues/9608	Issue Tracking
https://github.com/tektoncd/pipeline/issues/9609	Issue Tracking
https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) El proyecto Tekton Pipelines proporciona recursos estilo k8s para declarar pipelines estilo CI/CD. Desde la versión 1.0.0 hasta la 1.10.0, el resolvedor git de Tekton Pipelines en modo API envía el token API de Git configurado por el sistema a una serverURL controlada por el usuario cuando el usuario omite el parámetro de token. Un inquilino con permiso de creación de TaskRun o PipelineRun puede exfiltrar el token API compartido (PAT de GitHub, token de GitLab, etc.) al apuntar la serverURL a un endpoint controlado por un atacante.

Information

Published : 2026-04-21 17:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-40161

Mitre link : CVE-2026-40161

CVE.ORG link : CVE-2026-40161

JSON object : View

Products Affected

linuxfoundation

tekton_pipelines

CWE

CWE-201

Insertion of Sensitive Information Into Sent Data

NVD-CWE-noinfo

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