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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade modsecurity | Jul 12, 2026 | Jul 12, 2026 |
| Freebsd | — | Upgrade modsecurity3 | May 5, 2026 | May 4, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 12, 2026 |
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