RHSA-2026:99130: Important: mutter security update

Q: Which systems are exposed to this issue?

Systems using Mutter as the compositing window manager, specifically in a Wayland environment that processes color-management ICC image descriptions, are relevant to this issue. The affected Red Hat packages listed are mutter and its associated common, development, test, debug, and debuginfo packages.

Q: What does an attacker need to do to trigger the flaw?

The issue is client-triggered and involves the Wayland color-management ICC image-description processing path. The provided advisory does not specify the required client privileges, user interaction, or resulting impact.

Q: How can I determine whether the update applies to my host?

Check whether the host has a listed Red Hat Mutter package installed and uses Mutter with Wayland. The advisory identifies CVE-2026-108094 as the security fix included in RHSA-2026:99130.

Published Nov 11, 2026

Updated

Mutter is a compositing window manager that displays and manages desktop through OpenGL. It combines the window-management logic inherited from the Metacity window manager with a display engine that uses the Clutter toolkit. Security Fix(es): mutter: mutter: client-triggered use-after-free in Wayland color-management ICC image description path (CVE-2026-108094) 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.

Affected Software

25 affected componentsFixes available

redhat/mutter<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-common<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debugsource<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-devel-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-tests-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debugsource<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-devel-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-tests-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-debugsource<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-devel-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-tests-debuginfo<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-debuginfo<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-debugsource<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-devel-debuginfo<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-tests-debuginfo<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-devel<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-devel<49.4-6.el10_3.1

49.4-6.el10_3.1

redhat/mutter-devel<49.4-6.el10_3.1.aa

49.4-6.el10_3.1.aa

redhat/mutter-devel<49.4-6.el10_3.1

49.4-6.el10_3.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade redhat/mutter to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-common to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-debugsource to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-devel-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-tests-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa
Upgrade
Upgrade redhat/mutter-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa
Upgrade
Upgrade redhat/mutter-debugsource to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa
Upgrade
Upgrade redhat/mutter-devel-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa
Upgrade
Upgrade redhat/mutter-tests-debuginfo to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa
Upgrade
Upgrade redhat/mutter-devel to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1
Upgrade
Upgrade redhat/mutter-devel to a version that resolves this vulnerability.
Fixed in 49.4-6.el10_3.1.aa

Event History

Nov 11, 2026

Advisory Published

via Red Hat·12:00 AM

Data Sourced

via Red Hat·12:00 AM

RemedyDescriptionAffected Software

Frequently Asked Questions

Which systems are exposed to this issue?

Systems using Mutter as the compositing window manager, specifically in a Wayland environment that processes color-management ICC image descriptions, are relevant to this issue. The affected Red Hat packages listed are mutter and its associated common, development, test, debug, and debuginfo packages.

What does an attacker need to do to trigger the flaw?

The issue is client-triggered and involves the Wayland color-management ICC image-description processing path. The provided advisory does not specify the required client privileges, user interaction, or resulting impact.

How can I determine whether the update applies to my host?

Check whether the host has a listed Red Hat Mutter package installed and uses Mutter with Wayland. The advisory identifies CVE-2026-108094 as the security fix included in RHSA-2026:99130.

RHSA-2026:99130: Important: mutter security update

Affected Software

Remediation

Event History

Frequently Asked Questions

Which systems are exposed to this issue?

What does an attacker need to do to trigger the flaw?

How can I determine whether the update applies to my host?

Company

Resources

Contact

Frequently Asked Questions

Which systems are exposed to this issue?

What does an attacker need to do to trigger the flaw?

How can I determine whether the update applies to my host?