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 10.0 Extended Update Support. 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...

CVE-2026-11979

A flaw was found in libxml2, specifically within the xmlcatalog utility when operating in shell mode. An attacker can exploit multiple stack-based buffer overflows by providing an excessively long input line. This leads to memory corruption, which may cause the application to crash or potentially...

Linux Distros Unpatched Vulnerability : CVE-2026-11979

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell function processes user inp...

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...

UBUNTU-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...

EUVD-2026-40092

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...

CVE-2026-11979 Stack-Based Buffer Overflow in libxml2

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...

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...

CVE-2026-11979

CVE-2026-11979 affects libxml2 in the xmlcatalog utility when run in --shell mode. The usershell() function reads input into fixed-size stack buffers without proper bounds checking, allowing an overly long input line to overflow buffers (command, arg, argv) and cause stack memory corruption. Cons...

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...

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...

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...

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...

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 discovered in the libxml2 library. This vulnerability arises from uncontrolled resource consumption when processing XML catalogs that contain repeated elements pointing to the same downstream catalog. A remote attacker can exploit this vulnerability by providing malicious catalogs,...