PT-2026-37822

xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result prefixes...

PT-2026-37828

numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal...

PT-2026-38035

numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal...

PT-2026-37825

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash...

PT-2026-38032

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash...

libxslt: libxml2: Heap Use-After-Free in libxslt caused by atype corruption in xmlAttrPtr

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 acce...

Unity Linux 20.1050e / 20.1070e Security Update: libxslt (UTSA-2026-014831)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014831 advisory. A flaw was found in the exsltFuncResultComp function of libxslt, which handles EXSLT elements during stylesheet parsing. Due to improper type handling, the function...

Moderate: libxml2 security update

The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxslt: libxml2: Inifinite recursion at exsltDynMapFunction function in libexslt/dynamic.c CVE-2025-9714 For more details about the security issues, including the impact, a CVSS...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: libxslt: libxslt-1.1.45-0.1.hum1 aarch64, x8664 libxslt-devel-1.1.45-0.1.hum1 aarch64, x8664 python3-libxslt-1.1.45-0.1.hum1 aarch64, x8664 libxslt-1.1.45-0.1.hum1.src src...

libxslt: Type confusion in xmlNode.psvi between stylesheet and source nodes

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...

libxslt: Type Confusion in exsltFuncResultCompfunction of libxslt

A flaw was found in the exsltFuncResultComp function of libxslt, which handles EXSLT 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...

libxslt: use-after-free with key data stored cross-RVT

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash...

CLSA-2026-1776764746 libxslt: Fix of CVE-2021-30560

CVE-2021-30560: fix use-after-free in xsltApplyTemplates...

CLSA-2026-1776443255 libxslt: Fix of CVE-2023-40403

CVE-2023-40403: make generate-id deterministic to prevent memory layout leak...

Unity Linux 20.1070a Security Update: libxslt (UTSA-2026-007250)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007250 advisory. The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10,...

RHBA-2025:12345 Red Hat Bug Fix Advisory: libxml2 and libxslt bug fix and enhancement update

Bulletin has no description...

K000160723: libxslt vulnerability CVE-2025-10911

Security Advisory Description A use-after-free vulnerability was found in libxslt while parsing XSL nodes that may lead to the dereference of expired pointers and application crash. CVE-2025-10911 Impact There is no impact; F5 products are not affected by this vulnerability. F5 previously reporte...

K000160721: libxslt vulnerability CVE-2025-11731

Security Advisory Description A flaw was found in the exsltFuncResultComp function of libxslt, which handles EXSLT 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...

libxslt: libxml2: Inifinite recursion at exsltDynMapFunction function in libexslt/dynamic.c

A flaw was found in libxstl/libxml2. The 'exsltDynMapFunction' function in libexslt/dynamic.c does not contain a recursion depth check, which may cause an infinite loop via a specially crafted XSLT document while handling 'dyn:map', leading to stack exhaustion and a local denial of service...

RLSA-2026:6266 Moderate: libxslt security update

libxslt is a library for transforming XML files into other textual formats including HTML, plain text, and other XML representations of the underlying data using the standard XSLT stylesheet transformation mechanism. Security Fixes: libxslt: Processing web content may disclose sensitive informati...