CVE-2026-0989

CVE-2026-0989 concerns a flaw in the RelaxNG parser in libxml2 where external schema inclusions can cause unbounded recursion, leading to stack exhaustion and denial-of-service crashes. The connected documents confirm this issue across multiple distributions (e.g., Amazon Linux 2/ALAS advisories,...

CVE-2026-0989

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

libxml2 security vulnerability

Libxml2 is an open-source library from GNOME that is used for parsing XML documents. It is written in C language and can be called by various languages, such as C, C++, and XSH. Libxml2 has a security vulnerability; this vulnerability stems from the RelaxNG parser’s failure to limit the depth of...

PT-2026-3017

Name of the Vulnerable Software and Affected Versions libxml2 affected versions not specified Description The RelaxNG parser in libxml2 does not limit the depth of external schema inclusions when resolving nested directives. This can lead to excessive recursion during parsing with specially craft...