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PatchSiren cyber security CVE debrief

CVE-2026-108094 Red Hat CVE debrief

A use-after-free flaw was found in mutter in the Wayland color-management ICC image-description path. A local attacker who can run a malicious Wayland client can destroy a wp_image_description_v1 resource while an asynchronous ICC file read is still in progress. When the read completes, the compositor uses the freed wl_resource, writes into freed memory, and frees a pointer derived from that memory. This can crash the GNOME session and may allow arbitrary code execution within the compositor process.

Vendor
Red Hat
Product
Red Hat Enterprise Linux 10
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-12
Original CVE updated
2026-10-12
Advisory published
2026-10-12
Advisory updated
2026-10-12

Who should care

System administrators and users of affected Red Hat Enterprise Linux systems should assess exposure and prioritize patching or verification. This includes reviewing system deployments, verifying affected scope, and applying vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Why it matters

A use-after-free flaw in mutter's Wayland color-management ICC image-description path can crash the GNOME session and potentially allow code execution. System administrators and users of affected Red Hat Enterprise Linux systems should assess exposure and prioritize patching or verification.

  • Potential crashes of the GNOME session
  • Possible arbitrary code execution within the compositor process
  • Need for verification of affected systems and patching or updates

Technical summary

The vulnerability is caused by a use-after-free flaw in the Wayland color-management ICC image-description path. A local attacker can exploit this by running a malicious Wayland client, potentially crashing the GNOME session or executing arbitrary code within the compositor process. This issue affects mutter in the Wayland color-management ICC image-description path, and system administrators should assess exposure and prioritize patching or verification for affected Red Hat Enterprise Linux systems. The flaw can be triggered by a client destroying a wp_image_description_v1 resource while an asynchronous ICC file read is still in progress.

Defensive priority

High-priority patching and verification recommended for affected systems

Recommended defensive actions

  • Apply patches or updates from the vendor to address the vulnerability
  • Verify that affected systems are patched or updated
  • Monitor systems for potential crashes or unusual behavior
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE Program record and NVD vulnerability detail provide official information on the vulnerability. The source item from cve_program_cvelist_v5 provides additional metadata. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected systems and review vendor guidance for patching or updates.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-108094 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-108094

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-108094 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-108094

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.