Use of sizeof() on a Pointer Type Affecting owasp-modsecurity/ModSecurity package, versions [3.0.0,3.0.16)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OWASPMODSECURITYMODSECURITY-17950387
- published11 Jul 2026
- disclosed11 Jul 2026
- creditUnknown
Introduced: 11 Jul 2026
CVE-2026-52761 (opens in a new tab)How to fix?
Upgrade owasp-modsecurity/ModSecurity to version 3.0.16 or higher.
Overview
Affected versions of this package are vulnerable to Use of sizeof() on a Pointer Type in the utf8toUnicode transformation process on i386 architecture due to incorrect use of snprintf with sizeof on a char pointer instead of the actual buffer length. An attacker can bypass security rules that rely on this transformation by crafting input that exploits this flaw.