CVE-2025-7424: Access of Resource Using Incompatible Type ('Type Confusion') in GNOME libxslt
A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations. This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.
AI Analysis
Technical Summary
The vulnerability in libxslt arises from type confusion involving the xmlNode.psvi field, which is used interchangeably for stylesheet and source nodes. This can cause heap use-after-free or memory corruption during XML processing. The issue is tracked under CVE-2025-7424 and has been assigned a CVSS 3.1 score of 7.5 (high severity) with network attack vector, low attack complexity, no privileges required, and no user interaction needed. Red Hat's advisories (RHBA-2025:12345 and RHSA-2026:11015) confirm the existence of this flaw and provide updated libxslt packages that fix the problem.
Potential Impact
Exploitation of this vulnerability can cause application crashes or memory corruption, leading to denial of service or unexpected behavior in applications using libxslt for XML transformations. There is no indication of confidentiality or integrity impact. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Official patches are available from Red Hat for affected libxslt packages in Red Hat Enterprise Linux 10 and related distributions. Users should apply the updates provided in advisories RHBA-2025:12345 and RHSA-2026:11015 to remediate this vulnerability. Patch details and update instructions are available at Red Hat's customer portal. No additional mitigations are indicated by the vendor.
CVE-2025-7424: Access of Resource Using Incompatible Type ('Type Confusion') in GNOME libxslt
Description
A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations. This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.
CVSS v3.1
Score 7.5high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in libxslt arises from type confusion involving the xmlNode.psvi field, which is used interchangeably for stylesheet and source nodes. This can cause heap use-after-free or memory corruption during XML processing. The issue is tracked under CVE-2025-7424 and has been assigned a CVSS 3.1 score of 7.5 (high severity) with network attack vector, low attack complexity, no privileges required, and no user interaction needed. Red Hat's advisories (RHBA-2025:12345 and RHSA-2026:11015) confirm the existence of this flaw and provide updated libxslt packages that fix the problem.
Potential Impact
Exploitation of this vulnerability can cause application crashes or memory corruption, leading to denial of service or unexpected behavior in applications using libxslt for XML transformations. There is no indication of confidentiality or integrity impact. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Official patches are available from Red Hat for affected libxslt packages in Red Hat Enterprise Linux 10 and related distributions. Users should apply the updates provided in advisories RHBA-2025:12345 and RHSA-2026:11015 to remediate this vulnerability. Patch details and update instructions are available at Red Hat's customer portal. No additional mitigations are indicated by the vendor.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- redhat
- Date Reserved
- 2025-07-10T08:43:48.349Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/errata/RHBA-2025:12345","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:11015","vendor":"Red Hat"},{"url":"https://access.redhat.com/security/cve/CVE-2025-7424","vendor":"Red Hat"}]
Threat ID: 686fcb28a83201eaaca80f54
Added to database: 07/10/2025, 14:16:08 UTC
Last enriched: 07/02/2026, 22:22:33 UTC
Last updated: 09/10/2026, 20:00:57 UTC
Views: 374
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