What is CVE-2026-25542?

CVE-2026-25542 is a medium-severity vulnerability in Linuxfoundation Tekton_pipelines, classified under Incorrect Regular Expression. CVSS score: 6.5/10. Published 2026-04-21.

How severe is CVE-2026-25542?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Linuxfoundation Tekton_pipelines

CVE-2026-25542

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 0.43.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, trusted resources verification policies match a resource so…

EPSS: 0.000 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Linuxfoundation Tekton_pipelines
Tektoncd Pipeline — versions >= 1.4.0, < 1.6.2, >= 1.2.0, < 1.3.4, >= 1.7.0, < 1.9.3

Weakness classification (CWE)

CWE-185 — Incorrect Regular Expression

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25542?: CVE-2026-25542 is a medium-severity vulnerability in Linuxfoundation Tekton_pipelines, classified under Incorrect Regular Expression. CVSS score: 6.5/10. Published 2026-04-21.
How severe is CVE-2026-25542?: Medium severity. CVSS v3 base score is 6.5 out of 10.