CVE 8.2 HIGH

ModSecurity: Unsigned integer underflow in @verifySSN / @verifyCPF / @verifySVNR operators_CVE-2026-42268

8.2 / 10
HIGH
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

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. This vulnerability is fixed in 3.0.15.

Basic Information

ID CVE-2026-42268
Source GitHub_M
Published May 12, 2026 at 21:40

Affected Product

Vendor owasp-modsecurity
Product ModSecurity
Version >= 3.0.0, < 3.0.15
Affected Versions owasp-modsecurity ModSecurity >= 3.0.0, < 3.0.15

CWE Classification

References

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