libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c

A flaw was found in the xmllint program distributed by the libxml2 package. A buffer over-read in the xmlHTMLPrintFileContext function in the xmllint.c file may be triggered when a crafted file is processed with the xmllint program using the --htmlout command line option, causing an application...

Low: Red Hat Security Advisory: libxml2 security update

An update for libxml2 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability...

Linux Distros Unpatched Vulnerability : CVE-2026-6653

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via...

RHEL 8 : libxml2 (RHSA-2026:27739)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:27739 advisory. The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: buffer over-read in...

UBUNTU-CVE-2026-6653

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling...

RHEL 8 : libxml2 (RHSA-2026:27737)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:27737 advisory. The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: buffer over-read in...

PT-2026-51315

Name of the Vulnerable Software and Affected Versions libxml2 versions 2.9.11 through 2.11.0 Description A Use After Free issue exists in the xmlParseInternalSubset function of libxml2. This occurs due to improper entity resolution handling, which allows a remote attacker to cause a...

GHSA-5V8H-3H3Q-446P Nokogiri: Possible Use-After-Free when `Nokogiri::XML::Document#encoding=` raises an exception

Summary Calling Documentencoding= with an invalid encoding e.g., a non-string, or a string containing a null byte raises an exception, but only after freeing the document's current encoding string without replacing it. The document is left referencing freed memory, so the next call to...

Siemens RuggedCom Rox Uncontrolled Recursion (CVE-2025-9714)

Uncontrolled recursion inXPath evaluationin libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions xmlXPathRunEval, xmlXPathCtxtCompile, and xmlXPathEvalExpr were resetting recursion depth to zero before...

Siemens RUGGEDCOM RST2428P Expired Pointer Dereference (CVE-2025-49795)

A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service. This plugin only works with Tenable.ot. Please visit...

Siemens (CVE-2025-49796)

A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined...

Siemens RUGGEDCOM RST2428P Uncontrolled Recursion (CVE-2025-8732)

A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to...

Siemens (CVE-2025-49794)

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's...

RHSA-2026:26354 Red Hat Security Advisory: libxml2 security update

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libxml2 security update

An update is available for libxml2. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The libxml2 library is a development toolbox providing the implementation of...

RLSA-2026:26354 Low: libxml2 security update

The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c CVE-2024-34459 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c

A flaw was found in the xmllint program distributed by the libxml2 package. A buffer over-read in the xmlHTMLPrintFileContext function in the xmllint.c file may be triggered when a crafted file is processed with the xmllint program using the --htmlout command line option, causing an application...

Low: Red Hat Security Advisory: libxml2 security update

An update for libxml2 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE...

ALSA-2026:26354 Low: libxml2 security update

The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c CVE-2024-34459 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and...

TencentOS Server 2: libxml2 (TSSA-2026:0497)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0497 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:...