VU#987105: The nothings stb TrueType library, up to version 1.26, contains a heap buffer overflow vulnerability

Overview A heap buffer overflow vulnerability exists in the stb TrueType library created by nothings. Exploitation of this vulnerability can occur when handling malformed font data and may lead to both Denial of Service (DoS) and Information Disclosure. Description The nothings stb repository, versions 1.26 and earlier, contains a collection of single-file public domain and MIT-licensed libraries for C/C++ projects. CVE-2026-18497 A heap buffer overflow vulnerability exists in the stbtt_GetGlyphShape() function within the stb_truetype.h library when handling malformed TrueType Font (TTF) da...