CVE-2024-40896

In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE attacks possible.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
mitreCNA
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CISA-ADPADP
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVEADP
---
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
Debian logo
Debian Releases
Debian Product
Codename
libxml2
bullseye
2.9.10+dfsg-6.7+deb11u4
fixed
bullseye (security)
2.9.10+dfsg-6.7+deb11u7
fixed
bookworm
2.9.14+dfsg-1.3~deb12u1
fixed
sid
2.12.7+dfsg+really2.9.14-1
fixed
trixie
2.12.7+dfsg+really2.9.14-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libxml2
oracular
Fixed 2.12.7+dfsg-3ubuntu0.1
released
noble
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
Common Weakness Enumeration
References
https://gitlab.gnome.org/GNOME/libxml2/-/commit/1a8932303969907f6572b1b6aac4081c56adb5c6
https://gitlab.gnome.org/GNOME/libxml2/-/issues/761
https://security.netapp.com/advisory/ntap-20250228-0004/