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Fencer Vulns
high 7.8

CVE-2024-55549 json

xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of...

published 2025-03-14 19 mo ago modified 2026-09-10 59 d ago also BIT-java-2024-55549 , BIT-java-min-2024-55549 , BIT-jre-2024-55549 , EUVD-2024-54264 , GHSA-g8fv-r98j-937r , JLSEC-2026-582

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result prefixes.

Patch / fix

  • bitnami java 1.8.0, 8.0.461
  • bitnami java-min 1.8.0, 8.0.461
  • bitnami jre 1.8.0, 8.0.461
  • julia XSLT_jll 1.1.43+0
  • xmlsoft libxslt 1.1.43
  • libxslt Debian 12 1.1.35-1+deb12u1
  • libxslt Debian 14, Debian 13 1.1.35-1.2

debian advisories DEBIAN-CVE-2024-55549

  • libxslt Ubuntu 20.04 LTS 1.1.34-4ubuntu0.20.04.2
  • libxslt Ubuntu 22.04 LTS 1.1.34-4ubuntu0.22.04.2
  • libxslt Ubuntu 24.04 LTS 1.1.39-0exp1ubuntu0.24.04.1
  • libxslt Ubuntu Pro 14.04 LTS 1.1.28-2ubuntu0.2+esm4
  • libxslt Ubuntu Pro 16.04 LTS 1.1.28-2.1ubuntu0.3+esm3
  • libxslt Ubuntu Pro 18.04 LTS 1.1.29-5ubuntu0.3+esm2

ubuntu advisories UBUNTU-CVE-2024-55549

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libxslt RHEL 10.0 1.1.39-7.el10_0
  • libxslt RHEL 9 1.1.34-13.el9_6
  • libxslt RHEL 9 1.1.34-9.el9_5.2
  • libxslt RHEL 8 1.1.32-6.1.el8_10
  • libxslt RHEL 7 ELS 1.1.28-9.el7_9
  • libxslt-python RHEL 7 ELS 1.1.28-9.el7_9
  • libxslt RHEL 9.0 E4S 1.1.34-11.el9_0
  • libxslt RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 1.1.32-8.el8_6

red hat advisories RHSA-2025:7496RHSA-2025:7410RHSA-2025:4098RHSA-2025:4025RHSA-2025:3627RHSA-2025:3625

  • libxslt Linux Micro 6.0 1.1.38-4.1
  • libxslt Linux Micro 6.1 1.1.38-slfo.1.1_2.1
  • libxslt SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +13 more 1.1.34-150400.3.6.1
  • libxslt SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +3 more 1.1.32-150000.3.17.1
  • libxslt-python openSUSE Leap 15.6 1.1.32-150000.3.17.1
  • libxslt SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 1.1.28-17.18.1

suse advisories SUSE-SU-2025:1494-1SUSE-SU-2025:20201-1SUSE-SU-2025:20277-1SUSE-SU-2025:1125-1SUSE-SU-2025:1003-1

  • libqt5-qtwebengine openSUSE Tumbleweed 5.15.19-1.1
  • libxslt openSUSE Tumbleweed 1.1.43-1.1

opensuse advisories openSUSE-SU-2025:15531-1openSUSE-SU-2025:14894-1

  • libxslt AlmaLinux 9 1.1.34-13.el9_6
  • libxslt AlmaLinux 10 1.1.39-7.el10_0
  • libxslt AlmaLinux 9 1.1.34-9.el9_5.2
  • libxslt AlmaLinux 8 1.1.32-6.1.el8_10

almalinux advisories ALSA-2025:7410ALSA-2025:7496ALSA-2025:4025ALSA-2025:3615

  • libxslt Rocky Linux 9 1.1.34-13.el9_6
  • libxslt Rocky Linux 10 1.1.39-7.el10_0
  • libxslt Rocky Linux 8 1.1.32-6.1.el8_10

rocky linux advisories RLSA-2025:7410RLSA-2025:7496RLSA-2025:3615

  • libxslt Alpine 3.18 1.1.38-r1
  • libxslt Alpine 3.19 1.1.39-r1
  • libxslt Alpine 3.20 1.1.39-r2
  • libxslt Alpine 3.21 1.1.42-r2
  • libxslt Alpine 3.24, Alpine 3.23, Alpine 3.22 1.1.43-r0
  • qt5-qtwebengine Alpine 3.21 5.15.17-r7
  • qt5-qtwebengine Alpine 3.23, Alpine 3.22 5.15.17-r10
  • qt6-qtwebengine Alpine 3.24, Alpine 3.23, Alpine 3.22 6.8.2-r3

alpine advisories ALPINE-CVE-2024-55549

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libxslt CBL-Mariner 2.0 1.1.34-8
  • libxslt Azure Linux 3.0 1.1.43-1

azure linux advisories AZL-58635AZL-58680

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-55549 updated cvss 7.8

libxslt: Use-After-Free in libxslt (xsltGetInheritedNsList)

  • Red Hat Enterprise Linux 6 libxslt, libxslt-python
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) libxslt-devel 1.1.32-6.1.el8_10, libxslt-debuginfo 1.1.32-6.1.el8_10, libxslt-debugsource 1.1.32-6.1.el8_10
    fixed: vendor fix RHSA-2025:3615
  • Red Hat Enterprise Linux AppStream (v. 9) libxslt 1.1.34-13.el9_6, libxslt 1.1.34-9.el9_5.2
    fixed: vendor fix RHSA-2025:4025
  • Red Hat Enterprise Linux AppStream (v. 10) libxslt 1.1.39-7.el10_0
    fixed: vendor fix RHSA-2025:7496
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) libxslt-devel 1.1.32-6.el8_2, libxslt-debuginfo 1.1.32-6.el8_2, libxslt-debugsource 1.1.32-6.el8_2
    fixed: vendor fix RHSA-2025:3619
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) libxslt-devel 1.1.32-8.el8_4, libxslt-debuginfo 1.1.32-8.el8_4, libxslt-debugsource 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) libxslt-devel 1.1.32-8.el8_6, libxslt-debuginfo 1.1.32-8.el8_6, libxslt-debugsource 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux AppStream E4S (v.8.4) libxslt-devel 1.1.32-8.el8_4, libxslt-debuginfo 1.1.32-8.el8_4, libxslt-debugsource 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
show 26 more
  • Red Hat Enterprise Linux AppStream E4S (v.8.6) libxslt-devel 1.1.32-8.el8_6, libxslt-debuginfo 1.1.32-8.el8_6, libxslt-debugsource 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) libxslt 1.1.34-11.el9_0
    fixed: vendor fix RHSA-2025:3627
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) libxslt-devel 1.1.32-8.el8_8, libxslt-debuginfo 1.1.32-8.el8_8, libxslt-debugsource 1.1.32-8.el8_8
    fixed: vendor fix RHSA-2025:3624
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) libxslt 1.1.34-11.el9_2
    fixed: vendor fix RHSA-2025:3614
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) libxslt 1.1.34-13.el9_4
    fixed: vendor fix RHSA-2025:3613
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) libxslt-devel 1.1.32-8.el8_4, libxslt-debuginfo 1.1.32-8.el8_4, libxslt-debugsource 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) libxslt-devel 1.1.32-8.el8_6, libxslt-debuginfo 1.1.32-8.el8_6, libxslt-debugsource 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux BaseOS (v. 8) libxslt 1.1.32-6.1.el8_10
    fixed: vendor fix RHSA-2025:3615
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libxslt 1.1.32-6.el8_2
    fixed: vendor fix RHSA-2025:3619
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) libxslt 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) libxslt 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux BaseOS E4S (v.8.4) libxslt 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6) libxslt 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) libxslt 1.1.32-8.el8_8
    fixed: vendor fix RHSA-2025:3624
  • Red Hat Enterprise Linux BaseOS TUS (v.8.4) libxslt 1.1.32-8.el8_4
    fixed: vendor fix RHSA-2025:3626
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) libxslt 1.1.32-8.el8_6
    fixed: vendor fix RHSA-2025:3625
  • Red Hat Enterprise Linux Server (v. 7 ELS) libxslt 1.1.28-9.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) libxslt-python 1.1.28-9.el7_9
    fixed: vendor fix RHSA-2025:4098
  • Red Hat OpenShift Container Platform 4.12 rhcos 412.86.202505281830-0
    fixed: vendor fix RHSA-2025:8303
  • Red Hat OpenShift Container Platform 4.13 rhcos 413.92.202505061702-0
    fixed: vendor fix RHSA-2025:4677
  • Red Hat OpenShift Container Platform 4.14 rhcos 414.92.202505141057-0
    fixed: vendor fix RHSA-2025:7702
  • Red Hat OpenShift Container Platform 4.15 rhcos 415.92.202504282058-0
    fixed: vendor fix RHSA-2025:4422
  • Red Hat OpenShift Container Platform 4.16 rhcos 416.94.202505051351-0
    fixed: vendor fix RHSA-2025:4731
  • Red Hat OpenShift Container Platform 4.17 rhcos 417.94.202504291434-0
    fixed: vendor fix RHSA-2025:4431
  • Red Hat OpenShift Container Platform 4.18 rhcos 418.94.202504291430-0
    fixed: vendor fix RHSA-2025:4427
  • Red Hat OpenShift Container Platform 4.19 rhcos 4.19.9.6.202506172128-0, openshift4/frr-rhel9 v4.19.0-202506111842.p0.g5076dbc.assembly.stream.el9, openshift4/ose-cli-rhel9 v4.19.0-202506161807.p0.gfa1fd95.assembly.stream.el9, openshift4/ose-pod-rhel9 v4.19.0-202506161416.p0.ga36c41d.assembly.stream.el9, openshift4/ose-etcd-rhel9 v4.19.0-202506111842.p0.ga5421df.assembly.stream.el9, openshift4/ose-tests-rhel9 v4.19.0-202506161807.p0.g827e2ac.assembly.stream.el9, +180 more
    fixed: vendor fix RHSA-2025:9278
  • Red Hat OpenShift Container Platform 4.12 openshift4/ose-tests v4.12.0-202505221659.p0.g371c936.assembly.stream.el8, openshift4/ose-console v4.12.0-202505221659.p0.gb1a1975.assembly.stream.el8, openshift4/ose-installer v4.12.0-202505062034.p0.g5c54d04.assembly.stream.el8, openshift4/ose-sdn-rhel8 v4.12.0-202505221559.p0.g5fe565c.assembly.stream.el8, openshift4/ose-kube-proxy v4.12.0-202505221559.p0.g5fe565c.assembly.stream.el8, openshift4/ose-tools-rhel8 v4.12.0-202505221659.p0.gd691257.assembly.stream.el8, +13 more Red Hat OpenShift Container Platform 4.13 openshift4/ose-cli v4.13.0-202504220029.p0.gd192e90.assembly.stream.el8, openshift4/ose-pod v4.13.0-202504220029.p0.g53fd427.assembly.stream.el8, openshift4/ose-tests v4.13.0-202505010331.p0.g7f472fe.assembly.stream.el8, openshift4/ose-console v4.13.0-202504300029.p0.g0f90f85.assembly.stream.el8, openshift4/ose-coredns v4.13.0-202504220029.p0.ge70f097.assembly.stream.el8, openshift4/ose-deployer v4.13.0-202504220029.p0.gd192e90.assembly.stream.el8, +186 more Red Hat OpenShift Container Platform 4.14 openshift4/ose-tests v4.14.0-202505140038.p0.g61448fa.assembly.stream.el8, openshift4/ose-console v4.14.0-202505140038.p0.g1a760fb.assembly.stream.el8, openshift4/ose-installer v4.14.0-202504282038.p0.gd92ca63.assembly.stream.el8, openshift4/ose-sdn-rhel8 v4.14.0-202505061308.p0.g1f611c5.assembly.stream.el8, openshift4/ose-etcd-rhel9 v4.14.0-202504281009.p0.g5ed5044.assembly.stream.el9, openshift4/ose-kube-proxy v4.14.0-202505061308.p0.g1f611c5.assembly.stream.el8, +26 more Red Hat OpenShift Container Platform 4.15 openshift4/ose-cli v4.15.0-202504220035.p0.g8231637.assembly.stream.el8, openshift4/ose-tests v4.15.0-202504220035.p0.g7358b02.assembly.stream.el8, openshift4/ose-console v4.15.0-202504281408.p0.gfb0b085.assembly.stream.el8, openshift4/ose-deployer v4.15.0-202504220035.p0.g8231637.assembly.stream.el8, openshift4/ose-installer v4.15.0-202504241905.p0.g2d2704c.assembly.stream.el8, openshift4/ose-pod-rhel9 v4.15.0-202504281408.p0.gf383677.assembly.stream.el9, +187 more Red Hat OpenShift Container Platform 4.16 openshift4/ose-sdn-rhel9 v4.16.0-202504170035.p0.gcbddb0b.assembly.stream.el9, openshift4/ose-tests-rhel9 v4.16.0-202505060805.p0.g3073d4b.assembly.stream.el9, openshift4/ose-tools-rhel9 v4.16.0-202505060805.p0.gee354f6.assembly.stream.el9, openshift4/ose-console-rhel9 v4.16.0-202505061941.p0.g4a7dc54.assembly.stream.el9, openshift4/network-tools-rhel9 v4.16.0-202505060805.p0.g234ed43.assembly.stream.el9, openshift4/ose-installer-rhel9 v4.16.0-202504152206.p0.g91f0e41.assembly.stream.el9, +26 more Red Hat OpenShift Container Platform 4.17 openshift4/frr-rhel9 v4.17.0-202504291435.p0.g58f202b.assembly.stream.el9, openshift4/ose-cli-rhel9 v4.17.0-202504281009.p0.g0000b3e.assembly.stream.el9, openshift4/ose-pod-rhel9 v4.17.0-202504281009.p0.g89ebee0.assembly.stream.el9, openshift4/ose-etcd-rhel9 v4.17.0-202504281009.p0.g0d9e0a9.assembly.stream.el9, openshift4/ose-tests-rhel9 v4.17.0-202504300308.p0.g95cbab5.assembly.stream.el9, openshift4/ose-tools-rhel9 v4.17.0-202504300106.p0.g0000b3e.assembly.stream.el9, +183 more
    not affected: vulnerable code not present

1 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxslt/-/issues/127 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 7.8 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
OSV 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami java
<1.8.0
>=1.9.0, <8.0.461
1.8.0
8.0.461
bitnami java-min
<1.8.0
>=1.9.0, <8.0.461
1.8.0
8.0.461
bitnami jre
<1.8.0
>=1.9.0, <8.0.461
1.8.0
8.0.461
julia XSLT_jll
<1.1.43+0
1.1.43+0

Affected products

  • xmlsoft libxslt

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.