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,...

CVE-2026-11979: Stack-based Buffer Overflow

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...

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...

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...

Oracle Linux 9 : libxml2 (ELSA-2026-28254)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-28254 advisory. 2.9.13-14.1 - Fix CVE-2024-34459 RHEL-177882 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that...

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...

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...

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...

RockyLinux 9 : libxml2 (RLSA-2026:28254)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:28254 advisory. libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c CVE-2024-34459 Tenable has extracted the preceding description block directly from the RockyLin...

AlmaLinux 9 : libxml2 (ALSA-2026:28254)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:28254 advisory. libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c CVE-2024-34459 Tenable has extracted the preceding description block directly from the AlmaLinux...

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...

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 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...

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

Bulletin has no description...

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...