GO-2026-5021

vendorUSosv

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

view advisory published 2026-05-22Licence: per source

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-42508US	—	6.91% (94th)	—	2026-05-22
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

references

External citations — patches, advisories, analysis.

https://go.dev/cl/781220FIX
https://go.dev/issue/79568REPORT
https://groups.google.com/g/golang-announce/c/a082jnz-LvIWEB

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