RHSA-2026:98613 - Security Advisory

Topic

An update for cockpit-image-builder is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Critical. 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

The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.

Security Fix(es):

• source-map-js: source-map-js: Denial of Service via malformed indexed source maps (CVE-2026-93749)
• brace-expansion: brace-expansion: Denial of Service via uncontrolled recursion in nested brace patterns (CVE-2026-102278)
• brace-expansion: brace-expansion: Denial of Service via stack exhaustion from crafted brace patterns (CVE-2026-102276)
• zod: zod: Denial of service via unbounded array validation (CVE-2023-54404)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64

Fixes

• BZ - 2538368 - CVE-2026-93749 source-map-js: source-map-js: Denial of Service via malformed indexed source maps
• BZ - 2542700 - CVE-2026-102278 brace-expansion: brace-expansion: Denial of Service via uncontrolled recursion in nested brace patterns
• BZ - 2542707 - CVE-2026-102276 brace-expansion: brace-expansion: Denial of Service via stack exhaustion from crafted brace patterns
• BZ - 2544881 - CVE-2023-54404 zod: zod: Denial of service via unbounded array validation

CVEs

• CVE-2023-54404
• CVE-2026-93749
• CVE-2026-102276
• CVE-2026-102278

References

• https://access.redhat.com/security/updates/classification/#critical