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CVE-2026-88648

ADVISORY - nist

Summary

Incomplete X.509 implementation in GnuTLS v3.8.13 allows attackers controlling a subordinate Certificate Authority to bypass cross-domain PKI restrictions and issue unauthorized certificates.

EPSS Score⁠: 0.00117 (0.016)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-noinfo⁠

ADVISORY - redhat

CWE-295⁠

Improper Certificate Validation

Impacted images

Advisories

NIST

CREATED

UPDATED

ADVISORY IDCVE-2026-88648⁠
EXPLOITABILITY SCORE

-

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CWE-noinfo⁠
RATING UNAVAILABLE FROM ADVISORY

Debian

CREATED

UPDATED

ADVISORY IDCVE-2026-88648⁠
EXPLOITABILITY SCORE

-

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Alow

Red Hat

CREATED

UPDATED

ADVISORY IDCVE-2026-88648⁠
EXPLOITABILITY SCORE

2.2

EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CWE-295⁠

CVSS SCORE

7.4high