{"schemaVersion":3,"id":"CVE-2026-42268","aliases":["UBUNTU-CVE-2026-42268","DEBIAN-CVE-2026-42268"],"status":"published","duplicateOf":null,"title":null,"description":"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. 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