Is github.com/tektoncd/pipeline affected by CVE-2026-25542?

Go github.com/tektoncd/pipeline is affected in >=0.43.0 =1.2.0 =1.4.0 =1.7.0 =1.10.0 <1.11.1.

Is CVE-2026-25542 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2026-25542

Q: Is CVE-2026-25542 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Go · github.com/tektoncd/pipeline

Summary

Tekton Pipelines has VerificationPolicy regex pattern bypass via substring matching

Severity: medium
EPSS: 0.3% (p17)
Also known as: GHSA-rmx9-2pp3-xhcr
Published: 2026-04-21

References

https://github.com/tektoncd/pipeline/security/advisories/GHSA-rmx9-2pp3-xhcr
https://nvd.nist.gov/vuln/detail/CVE-2026-25542
https://github.com/tektoncd/pipeline/commit/2c398711e6e9e232180508f0648425a8ea34dc9e

Related advisories

CVE-2026-40938 — high · Go/github.com/tektoncd/pipeline
CVE-2026-40161 — high · Go/github.com/tektoncd/pipeline
CVE-2026-40924 — medium · Go/github.com/tektoncd/pipeline
CVE-2026-40923 — medium · Go/github.com/tektoncd/pipeline
CVE-2026-33211 — medium · Go/github.com/tektoncd/pipeline
CVE-2026-33022 — medium · Go/github.com/tektoncd/pipeline

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.