Search/CVE-2026-42508
● CVE — Critical

CVE-2026-42508

VendorgolangProductcryptoDiscoveredMay 22, 2026UpdatedSep 15, 2026

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.

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CVSS v3.1
9.1 CRITICAL
EPSS
6.91%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
1
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 14, 2026 → Oct 24, 2026
▲ 6.34pp
0.57% → 6.91% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Connections
3 relationships
Timeline
disclosure → media coverage
May 22, 2026
Disclosure — published as a CVE record. · last revised by NVD Sep 15, 2026
Jun 18, 2026
ubuntu.com reports: USN-8447-2: LXD vulnerabilities