{"schemaVersion":3,"id":"CVE-2026-52761","aliases":["UBUNTU-CVE-2026-52761","DEBIAN-CVE-2026-52761"],"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 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. 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