CVE-2026-24515

EUVD-2026-4424
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
2.9 LOW
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
mitreCNA
2.9 LOW
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
libexpat_projectlibexpat
𝑥
< 2.7.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
expat
bookworm
no-dsa
bookworm (security)
vulnerable
bullseye
postponed
bullseye (security)
vulnerable
forky
2.7.4-1
fixed
sid
2.7.4-1
fixed
trixie
no-dsa
Common Weakness Enumeration
References
https://github.com/libexpat/libexpat/pull/1131