Input validation error in wolfSSL - CVE-2026-10098
Published: July 1, 2026
Vulnerability identifier: #VU136640
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-2026-10098
CWE-ID: CWE-20
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 falsify certificate revocation status.
The vulnerability exists due to improper input validation in wolfSSL_OCSP_resp_find_status when matching CertID serial numbers. A remote attacker can supply a crafted OCSP response with a same-issuer serial prefix to falsify certificate revocation status.
How to mitigate CVE-2026-10098
Install security update from vendor's website.