CVE-2026-86140

CVE-2026-86140 affects libxml2 versions prior to 2.15.4 . The vulnerability resides in the xmlSnprintfElements function within valid.c , where a strcat call causes a stack-based buffer overflow . The CVSS 3.1 score is 8.0 (HIGH) with a local attack vector, low complexity, and no privileges or use...