VULNERABILITY INTELLIGENCE

CVE-2026-5263

CVSS score7 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2026-04-09
Last modified2026-07-02
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:H/SI:N/SA:N

Description

URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL would accept them as valid.

Weakness classification

  • CWE-295: Improper Certificate Validation

Primary references