criticalCVSS 9.1Vulnerability
CVE-2026-42508
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.
Properties
- severity
- critical
- summary
- golang.org/x/crypto/ssh/knownhosts vulnerable to auth bypass via unenforced @revoked status
- epss_score
- 0.00568
- cvss_score
- 9.1
- ghsa_published
- 2026-06-25T22:22:04Z
- source_url
- https://github.com/advisories/GHSA-5cgq-3rg8-m6cv
- ghsa_updated
- 2026-07-01T15:35:58Z
- ghsa_id
- GHSA-5cgq-3rg8-m6cv
- cve_id
- CVE-2026-42508
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- is_ghsa_only
- false
- epss_percentile
- 0.43965
Related Entities (5)
ENRICHED_BY (1)
→[Source]FIRST EPSS
VULNERABLE_TO (1)
←[Software]go/golang.org/x/crypto/ssh/knownhosts
AFFECTS (1)
→[Software]go/golang.org/x/crypto/ssh/knownhosts
HAS_WEAKNESS (1)
→[Weakness]Improper Certificate Validation
REPORTED_BY (1)
→[Source]GitHub Advisory Database
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