HIGHCVE-2026-42268Published Modified CNA GitHub_M
CVE-2026-42268: ModSecurity: Unsigned integer underflow in @verifySSN / @verifyCPF / @verifySVNR operators
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 to before 3.0.15, there is an unhandled exception (std::out_of_range) caused by unsigned integer underflow in libmodsecurity3 if the user (administrator) uses a rule any of @verifySSN, @verifyCPF, or @verifySVNR. This vulnerability is fixed in 3.0.15.
Metrics
- CVSS v4.0
- 8.2
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- owasp-modsecurity / ModSecurity>= 3.0.0, < 3.0.15
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N