CVE-2026-40161
7.7 · HIGHOverview
CVE-2026-40161 is a high-severity vulnerability affecting linuxfoundation tekton_pipelines. It was published on April 21, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from linuxfoundation. Update tekton_pipelines to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linuxfoundation | tekton_pipelines | 1.0.0 | Affected |
Frequently Asked Questions
What is CVE-2026-40161?
CVE-2026-40161 is a high-severity vulnerability affecting linuxfoundation tekton_pipelines. It was published on April 21, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).
How severe is CVE-2026-40161?
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-40161?
Check the references section for vendor advisories and patches from linuxfoundation. Update tekton_pipelines to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-40161?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-40161 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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