Is github.com/distribution/distribution/v3 affected by CVE-2026-33540?

Go github.com/distribution/distribution/v3 is affected in <3.1.0.

Is CVE-2026-33540 being exploited?

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

high

CVE-2026-33540

Q: Is CVE-2026-33540 being exploited?

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

Go · github.com/distribution/distribution/v3 • Go · github.com/distribution/distribution

Summary

Distribution affected by pull-through cache credential exfiltration via www-authenticate bearer realm

Severity: high
EPSS: 0.3% (p19)
Also known as: GHSA-3p65-76g6-3w7r#github.com/distribution/distribution, GHSA-3p65-76g6-3w7r#github.com/distribution/distribution/v3
Published: 2026-04-06

References

https://github.com/distribution/distribution/security/advisories/GHSA-3p65-76g6-3w7r
https://nvd.nist.gov/vuln/detail/CVE-2026-33540
https://github.com/distribution/distribution/commit/cc5d5fa4ba02157501e6afa2cc6a903ad0338e7b

Related advisories

CVE-2026-35172 — high · Go/github.com/distribution/distribution/v3
CVE-2026-41888 — medium · Go/github.com/distribution/distribution/v3

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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.