CVE-2026-27821

GPAC has a stack-based overflow in NHML demuxer (dmx_nhml.c) affecting versions up to 26.02.0. The parser copies the xmlHeaderEnd attribute into a 1000-byte buffer with strcpy(), enabling overflow if input exceeds 1000 bytes. A fix is available via commit 9bd7137fded2db40de61a2cf3045812c8741ec52....