CVE-2026-117610 — Vulnerability intelligence
libexpat project — libexpat
Published:
- CVSS
- 8.2
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
libexpat through 2.9.0 contains a NULL pointer dereference vulnerability in externalEntityInitProcessor2() in lib/xmlparse.c that mishandles the XML_TOK_NONE token from empty input. Attackers who control stream chunking can force an empty non-final first parse on an external entity subparser, causing a later parse to crash the application.