Public proof of conceptFix available

CVE-2024-55549

Q: Is CVE-2024-55549 actively exploited?

A proof-of-concept exploit exists for CVE-2024-55549, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2024-55549?

CVE-2024-55549 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2025-03-14
Fixed in8.0.461 · 1.8.0
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC

2025-03-1402:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-55549?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-55549?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV

java

Branch	Affected	Fixed in	Source
8.0	≥ 1.9.0, < 8.0.461	8.0.461	OSV
1.8	< 1.8.0	1.8.0	OSV

java-min

Branch	Affected	Fixed in	Source
8.0	≥ 1.9.0, < 8.0.461	8.0.461	OSV
1.8	< 1.8.0	1.8.0	OSV

jre

Branch	Affected	Fixed in	Source
8.0	≥ 1.9.0, < 8.0.461	8.0.461	OSV
1.8	< 1.8.0	1.8.0	OSV

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

libxsltAlmaLinux:10all versions · fixed in 1.1.39-7.el10_0and 1 other package
libxsltAlmaLinux:9all versions · fixed in 1.1.34-13.el9_6and 1 other package
libxsltAlmaLinux:9all versions · fixed in 1.1.34-9.el9_5.2and 1 other package
libxsltAlmaLinux:8all versions · fixed in 1.1.32-6.1.el8_10and 1 other package

Vendor advisories

CVE-2024-55549 Red Hat Product Security1,001 products fixed · 4 known affected
libxslt: Use-After-Free in libxslt (xsltGetInheritedNsList)
libxslt as a component of Red Hat Enterprise Linux 6 · libxslt-devel as a component of Red Hat Enterprise Linux 6 · libxslt-python as a component of Red Hat Enterprise Linux 6 · +1 more
RHSA-2025:9278 Red Hat Product Security650 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.19.1 bug fix and security update
RHSA-2025:8303 Red Hat Product Security1 product fixed
Red Hat Security Advisory: OpenShift Container Platform 4.12.77 bug fix and security update
RHSA-2025:7702 Red Hat Product Security4 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.14.52 bug fix and security update
RHSA-2025:4677 Red Hat Product Security1 product fixed
Red Hat Security Advisory: OpenShift Container Platform 4.13.58 bug fix and security update
RHSA-2025:4731 Red Hat Product Security4 products fixed
Red Hat Security Advisory: OpenShift Container Platform 4.16.40 bug fix and security update

15 more advisories

Full record on NVD

Fix

Update java to 8.0.461 · 1.8.0
Vendor fix Red Hat Product Security RHSA-2025:9278 · 650 productsFor OpenShift Container Platform 4.19 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.…
Vendor fix Red Hat Product Security RHSA-2025:8303 · 1 productFor OpenShift Container Platform 4.12 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platfo…
Vendor fix Red Hat Product Security RHSA-2025:7702 · 4 productsFor OpenShift Container Platform 4.14 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.…
Vendor fix Red Hat Product Security RHSA-2025:4677 · 1 productFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platfor…
Vendor fix Red Hat Product Security RHSA-2025:4731 · 4 productsFor OpenShift Container Platform 4.16 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/openshift_container_platform/4.…
Vendor fix Red Hat Product Security RHSA-2025:7496 · 17 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

gitlab.gnome.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2025-03-14
OpenCVESSVC decisionpoc—
CNACVSS 3.17.8read 2026-10-23
NVDCVSS 3.17.8read 2026-10-23
CNAweakness (CWE)CWE-416read 2026-10-23
FIRST EPSSEPSS score0.4 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2025-03-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2024-55549?

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

Is CVE-2024-55549 actively exploited?

A proof-of-concept exploit exists for CVE-2024-55549, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-55549?

CVE-2024-55549 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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