RHSA-2026:72448 — Security Advisory
Red Hat Security Advisory: expat security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · September 28, 2026
Updated · November 3, 2026
Topic
An update for expat is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Expat is a C library for parsing XML documents.
Security Fix(es):
-
expat: Expat: Denial of Service via quadratic complexity in attribute processing (CVE-2026-66046)
-
expat: Expat: XML Injection via Malformed UTF-16 Input (CVE-2026-93990)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.