CVE-2025-49794
Critical
Description
A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.
SeverityCritical
CVSS9.1
Exploit probability—
Product
Libxml2
PublishedJun 16, 2025
First seenJun 16, 2025
Weakness typeCWE-825CWE-825
How to fix
Update
- libxml22.15.0 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2025:10630
- access.redhat.com/errata/RHSA-2025:10698
- access.redhat.com/errata/RHSA-2025:10699
- access.redhat.com/errata/RHSA-2025:11580
- access.redhat.com/errata/RHSA-2025:12098
- access.redhat.com/errata/RHSA-2025:12099
- access.redhat.com/errata/RHSA-2025:12199
- access.redhat.com/errata/RHSA-2025:12237
- access.redhat.com/errata/RHSA-2025:12239
- access.redhat.com/errata/RHSA-2025:12240
- access.redhat.com/errata/RHSA-2025:12241
- access.redhat.com/errata/RHSA-2025:13335
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libxml2 | v < 2.15.0 | 2.15.0 |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.2 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.0 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_eus 9.4 | No range specified | — |
| openshift 4.12 | No range specified | — |
| openshift 4.13 | No range specified | — |
| openshift 4.14 | No range specified | — |
| openshift 4.15 | No range specified | — |
| openshift 4.16 | No range specified | — |
| openshift 4.17 | No range specified | — |
| openshift 4.18 | No range specified | — |
| openshift 4.19 | No range specified | — |
| openshift 4.20 | No range specified | — |
| webterminal 1.11 | No range specified | — |
| webterminal 1.12 | No range specified | — |
| openshift_serverless 1.36 | No range specified | — |
| cert_manager 1.16 | No range specified | — |
| openshift_file_integrity_operator 1 | No range specified | — |
| Red Hat Red Hat Hardened Images | No range specified | — |
| insights_proxy 1.5 | No range specified | — |
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