CVE-2026-52761
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8_to_unicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a char pointer rather than the length of the unicode buffer, allowing rules that use this transformation to be bypassed on i386 architecture. This issue is fixed in version 3.0.16.
- Affected products
- Modsecurity
- Owasp Modsecurity
- ≤ 3.0.15
- Fix
- Available
- CVSS 3.1
- 5.8 MEDIUM
- EPSS
- 0.4% (34th percentile)
- Weakness
- CWE-467
- NVD status
- Analyzed
- Published
- 2026-07-10
CVE-2026-52761 at NVD
No indexed exploits for CVE-2026-52761 yet
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No exploit for CVE-2026-52761 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.