CVE-2025-11731: Access of Resource Using Incompatible Type ('Type Confusion')
A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.
AI Analysis
Technical Summary
The vulnerability CVE-2025-11731 exists in the exsltFuncResultComp() function of libxslt, which processes EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may confuse an XML document node with a regular XML element node, causing type confusion. This can result in unexpected memory reads and potential crashes, leading to application instability or denial of service. The CVSS v3.1 score is 3.1, indicating low severity. Red Hat has published advisories referencing this CVE but the provided advisory content does not explicitly confirm a patch or fix status.
Potential Impact
The vulnerability can cause unexpected memory reads and application crashes due to type confusion in libxslt's handling of EXSLT <func:result> elements. This may lead to application instability or denial of service. There is no indication of confidentiality or integrity impact. Exploitation is considered difficult, and no known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Red Hat has published advisories related to this vulnerability (https://access.redhat.com/errata/RHSA-2026:11015 and https://access.redhat.com/security/cve/CVE-2025-11731). Users should monitor these advisories for updates and apply any available updates or patches as recommended by Red Hat.
CVE-2025-11731: Access of Resource Using Incompatible Type ('Type Confusion')
Description
A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.
CVSS v3.1
Score 3.1low
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-11731 exists in the exsltFuncResultComp() function of libxslt, which processes EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may confuse an XML document node with a regular XML element node, causing type confusion. This can result in unexpected memory reads and potential crashes, leading to application instability or denial of service. The CVSS v3.1 score is 3.1, indicating low severity. Red Hat has published advisories referencing this CVE but the provided advisory content does not explicitly confirm a patch or fix status.
Potential Impact
The vulnerability can cause unexpected memory reads and application crashes due to type confusion in libxslt's handling of EXSLT <func:result> elements. This may lead to application instability or denial of service. There is no indication of confidentiality or integrity impact. Exploitation is considered difficult, and no known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Red Hat has published advisories related to this vulnerability (https://access.redhat.com/errata/RHSA-2026:11015 and https://access.redhat.com/security/cve/CVE-2025-11731). Users should monitor these advisories for updates and apply any available updates or patches as recommended by Red Hat.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- redhat
- Date Reserved
- 2025-10-14T05:28:37.404Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/errata/RHSA-2026:11015","vendor":"Red Hat"},{"url":"https://access.redhat.com/security/cve/CVE-2025-11731","vendor":"Red Hat"}]
Threat ID: 68edeb573aa78542cebbacfc
Added to database: 10/14/2025, 06:19:03 UTC
Last enriched: 06/25/2026, 20:25:35 UTC
Last updated: 06/27/2026, 21:25:05 UTC
Views: 213
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