CVE-2026-95210 GnuTLS - Weak Cryptography

GnuTLS 3.8.13 contains an insecure certificate validation caused by acceptance of certificates with invalid extensions, letting attackers bypass certificate validation, exploit requires attacker to present crafted certificates.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.23% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Weak Cryptography
Impact
Man In The Middle
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
8 October 2026
Updated
15 October 2026
Weakness
CWE-295

Vendor fix

Update to the latest version of GnuTLS.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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