RHSA-2026:13671 — Security Advisory
Red Hat Security Advisory: image-builder security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · May 5, 2026
Updated · November 4, 2026
Topic
An update for image-builder is now available for Red Hat Enterprise Linux 9.
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
A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood.
Security Fix(es):
- net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
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.