CVE-2025-24855

numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
mitreCNA
7.8 HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
CISA-ADPADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
libxslt
bullseye
vulnerable
bullseye (security)
1.1.34-4+deb11u2
fixed
bookworm
vulnerable
bookworm (security)
1.1.35-1+deb12u1
fixed
sid
1.1.35-1.2
fixed
trixie
1.1.35-1.2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libxslt
oracular
Fixed 1.1.39-0exp1ubuntu1.2
released
noble
Fixed 1.1.39-0exp1ubuntu0.24.04.2
released
jammy
Fixed 1.1.34-4ubuntu0.22.04.3
released
focal
Fixed 1.1.34-4ubuntu0.20.04.3
released
bionic
needs-triage
xenial
needs-triage
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://gitlab.gnome.org/GNOME/libxslt/-/issues/128