CVE-2026-11979

libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell function processes user input using fixed-size stack buffers without proper bounds checking. By supplying an overly long input line, an attacker can overflow intern...

libxml2 security update

2.9.1-6.0.13.6 - Backport fix for CVE-2025-9714 Orabug: 39476695 2.9.1-6.0.11.6 - Fix CVE-2025-32415: Fix heap buffer overflow Orabug: 38310750 2.9.1-6.0.9.6 - Fix CVE-2025-7425: heap-use-after-free in xmlFreeID Orabug: 38290330 2.9.1-6.0.7.6 - Fix CVE-2025-6021, CVE-2025-32414, CVE-2025-49794,...

Linux Distros Unpatched Vulnerability : CVE-2026-57236

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, calling Documentencoding= with an invalid encoding e.g., a...

PT-2026-53257

Name of the Vulnerable Software and Affected Versions libxml2 affected versions not specified Description The xmlcatalog utility is susceptible to multiple stack-based buffer overflows when operating in --shell mode. The usershell function processes user input using fixed-size stack buffers witho...

CVE-2026-57236

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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...

CVE-2026-57236

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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...

CVE-2026-57236

CVE-2026-57236 affects Nokogiri (Ruby) with the CRuby/libxml2 backend. Prior to 1.19.4, calling Document#encoding= with an invalid encoding (e.g., non-string or null byte) frees the current encoding string but does not replace it, leaving the document referencing freed memory. The next call to Do...

EUVD-2026-39419

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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...

CVE-2026-57236

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, 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...

PT-2026-52448

Name of the Vulnerable Software and Affected Versions Nokogiri versions prior to 1.19.4 Description In the CRuby libxml2 implementation, calling the Documentencoding= method with an invalid encoding, such as a non-string or a string containing a null byte, triggers an exception. This process occu...

CVE-2026-6653

A flaw was found in libxml2. A remote attacker can exploit a use-after-free vulnerability in the xmlParseInternalSubset function by providing maliciously crafted XML input. This improper handling of entity resolution can lead to a denial-of-service DoS, making the affected system or application...

Astra Linux – Vulnerability in libxml2

A flaw was identified in the RelaxNG parser of libxml2 regarding how external schema inclusions are handled. The parser does not enforce a limit on the inclusion depth when resolving nested directives. Specifically crafted or overly complex schemas can cause excessive recursion during parsing. Th...

libxml2 security update

An update is available for libxml2. This update affects Rocky Linux 10. 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-2026:28234 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 security update

An update is available for libxml2. This update affects Rocky Linux 9. 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...

RHSA-2026:28234 Red Hat Security Advisory: libxml2 security update

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RHEL 9 : libxml2 (RHSA-2026:28254)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:28254 advisory. The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: buffer over-read in...

Ubuntu 22.04 LTS / 24.04 LTS : libxml2 vulnerability (USN-8456-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8456-1 advisory. Geoffrey Humphreys discovered that libxml2 had a use after free when parsing the internal subset of a DTD. A remote attacker could possibly use this...

Low: Red Hat Security Advisory: libxml2 security update

An update for libxml2 is now available for Red Hat Enterprise Linux 9. 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...

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...