CVE-2026-24515

LOW

libexpat < 2.7.4 - NULL Pointer Dereference in XML_ExternalEntityParserCreate

Title source: llm
STIX 2.1

Description

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.

References (2)

Core 2

Scores

CVSS v3 2.9
EPSS 0.0016
EPSS Percentile 6.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (2)
libexpat project/libexpat < 2.7.4
libexpat_project/libexpat < 2.7.4
Published Jan 23, 2026
Tracked Since Feb 18, 2026