high7.5
CVE-2026-42268
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Owasp | Modsecurity | from 3.0.0 before 3.0.15 |