Description
A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption.
References10
- access.redhat.com/errata/RHBA-2025:12345
- access.redhat.com/errata/RHSA-2025:12447
- access.redhat.com/errata/RHSA-2025:12450
- access.redhat.com/errata/RHSA-2025:13267
- access.redhat.com/errata/RHSA-2025:13308
- access.redhat.com/errata/RHSA-2025:13309
- access.redhat.com/errata/RHSA-2025:13310
- access.redhat.com/errata/RHSA-2025:13311
- access.redhat.com/errata/RHSA-2025:13312
- access.redhat.com/errata/RHSA-2025:13313
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H - EPSS — exploit probability
- 0% percentile: 39 · as of 7 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
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