Improper Certificate Validation in wolfSSL - CVE-2026-7532
Published: July 1, 2026
Vulnerability identifier: #VU136642
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-7532
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: wolfSSL
Affected software:
wolfSSL
wolfSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass name constraints.
The vulnerability exists due to improper certificate validation in IP address name-constraint enforcement when WOLFSSL_IP_ALT_NAME is not defined. A remote attacker can present a crafted certificate to bypass name constraints.
The issue occurs only when WOLFSSL_IP_ALT_NAME is not defined.
How to mitigate CVE-2026-7532
Install security update from vendor's website.