Is github.com/tektoncd/pipeline affected by CVE-2026-40923?

Go github.com/tektoncd/pipeline is affected in >=1.10.0 =1.7.0 =1.4.0 =1.2.0 =1.0.0 <1.0.2.

Is CVE-2026-40923 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-40923

Q: Is CVE-2026-40923 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

Go · github.com/tektoncd/pipeline

Summary

Tekton Pipelines: VolumeMount path restriction bypass via missing filepath.Clean in /tekton/ check

Severity: medium
EPSS: 0.2% (p12)
Also known as: GHSA-rx35-6rhx-7858
Published: 2026-04-21

References

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-2026-25542 — 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.