# CVE-2025-7424: Libxslt: type confusion in xmlnode.psvi between stylesheet and source nodes

Status: published. Published: 2025-07-10. Updated: 2026-11-04.

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.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

- GNOME / libxslt (libxslt): ≥ 0; < 1.1.44 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (libxslt): ≥ 0:1.1.39-8.el10_0; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (libxslt-main): ≥ 1.1.45-0.1.hum1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (libxslt): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (libxslt): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (libxslt): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (libxslt): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-9): Version range not reported. Source: CNA: redhat

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:xmlsoft:libxslt:-:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  },
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: CNA: redhat

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: secalert@redhat.com

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: nvd@nist.gov

- CISA KEV: No listing in collected sources

- EPSS: 1.30% as of 2026-11-04; percentile 70.53%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-843

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHBA-2025:12345 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:11015 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2025-7424 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2379228 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://gitlab.gnome.org/GNOME/libxslt/-/issues/139 (CNA: redhat)

- https://lists.debian.org/debian-lts-announce/2025/09/msg00024.html (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Aug/0 (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Jul/37 (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Jul/35 (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Jul/33 (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Jul/32 (ADP: CVE)

- http://seclists.org/fulldisclosure/2025/Jul/30 (ADP: CVE)

- http://www.openwall.com/lists/oss-security/2025/07/11/2 (ADP: CVE)

- https://access.redhat.com/errata/RHBA-2025:12345 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:11015 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2025-7424 (secalert@redhat.com; Third Party Advisory)

- https://bugzilla.redhat.com/show_bug.cgi?id=2379228 (secalert@redhat.com; Issue Tracking, Third Party Advisory)

- https://gitlab.gnome.org/GNOME/libxslt/-/issues/139 (secalert@redhat.com)

- http://seclists.org/fulldisclosure/2025/Aug/0 (af854a3a-2127-422b-91ae-364da2661108)

- http://seclists.org/fulldisclosure/2025/Jul/30 (af854a3a-2127-422b-91ae-364da2661108)

- http://seclists.org/fulldisclosure/2025/Jul/32 (af854a3a-2127-422b-91ae-364da2661108)

- http://seclists.org/fulldisclosure/2025/Jul/33 (af854a3a-2127-422b-91ae-364da2661108)

- http://seclists.org/fulldisclosure/2025/Jul/35 (af854a3a-2127-422b-91ae-364da2661108)

- http://seclists.org/fulldisclosure/2025/Jul/37 (af854a3a-2127-422b-91ae-364da2661108)

- http://www.openwall.com/lists/oss-security/2025/07/11/2 (af854a3a-2127-422b-91ae-364da2661108)

- https://lists.debian.org/debian-lts-announce/2025/09/msg00024.html (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2025-7424; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-7424; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2025-7424; retrieved 2026-11-04; source updated Not reported

Revision: 684da673340a0a6fae407398381aa563e5908ec69eb597cc102a3501765c3042

Canonical: https://y2.dev/cve/CVE-2025-7424

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