Libxslt: type confusion in exsltfuncresultcompfunction of libxslt

Summary

CVECVE-2025-11731
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-14 06:15:34 UTC
Updated2026-04-13 18:16:26 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 3.1 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

EPSS: 0.000760000 probability, percentile 0.228230000 (date 2026-04-15)

Problem Types: CWE-843 | CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')


VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.1LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
3.1CNACVSS3.1LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
CNA Red Hat Red Hat Hardened Images Not specified Not specified
CNA Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified

References

ReferenceSourceLinkTags
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
gitlab.gnome.org/GNOME/libxslt/-/issues/151 [email protected] gitlab.gnome.org
gitlab.gnome.org/GNOME/libxslt/-/merge_requests/78 [email protected] gitlab.gnome.org
access.redhat.com/security/cve/CVE-2025-11731 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Google Big Sleep for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-10-14T05:24:09.808ZReported to Red Hat.
CNA2025-10-14T00:00:00.000ZMade public.

Workarounds

CNA: Mitigation for this issue is either not available or the currently available options don’t meet the Red Hat Product Security criteria comprising ease of use, applicability to a widespread installation base, or stability.

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