Is golang.org/x/crypto affected by CVE-2026-42508?

Go golang.org/x/crypto is affected in <0.52.0.

Is CVE-2026-42508 being exploited?

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

medium

CVE-2026-42508

Q: Is CVE-2026-42508 being exploited?

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

Go · golang.org/x/crypto

Summary

Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts

Severity: medium
EPSS: 0.3% (p22)
Also known as: GO-2026-5021
Published: 2026-05-22

References

Related advisories

CVE-2026-39832 — medium · Go/golang.org/x/crypto
CVE-2026-39834 — medium · Go/golang.org/x/crypto
CVE-2026-39827 — medium · Go/golang.org/x/crypto
CVE-2026-39830 — medium · Go/golang.org/x/crypto
CVE-2026-39829 — medium · Go/golang.org/x/crypto
CVE-2026-39828 — medium · Go/golang.org/x/crypto
CVE-2026-39835 — medium · Go/golang.org/x/crypto
CVE-2026-46595 — medium · Go/golang.org/x/crypto

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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.