Fedora 44 Security Updates Address Multiple Vulnerabilities in Xwayland and X Server

Linuxsecurity

Fedora 44 Security Updates Address Multiple Vulnerabilities in Xwayland and X Server

First seen 4 Jun 2026, 07:24 UTC • •60.6

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ThreatCluster •June 5, 2026 at 07:11 UTC

•Fedora 44 updates released for Xwayland and X server addressing multiple vulnerabilities.
•Vulnerabilities include ZDI-CAN-30136 through ZDI-CAN-30168, affecting Fedora 44 systems.
•System administrators are urged to apply updates immediately to mitigate potential exploitation.

On June 2, 2026, Fedora released critical updates for its Xwayland and X server components, addressing multiple security vulnerabilities identified as ZDI-CAN-30136, ZDI-CAN-30159, ZDI-CAN-30160, ZDI-CAN-30161, ZDI-CAN-30163, ZDI-CAN-30164, ZDI-CAN-30165, and ZDI-CAN-30168. The updates include Xwayland version 24.1.12 and xserver version 21.1.23. These vulnerabilities could potentially allow unauthorized access or exploitation of systems running Fedora 44. Users are advised to apply the updates immediately to mitigate risks associated with these vulnerabilities. The updates can be installed using the 'dnf' package manager. The vulnerabilities were reported by the Zero Day Initiative (ZDI). Current status indicates that the updates are available and should be prioritized by system administrators.

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Timeline

2026-06-02

Fedora releases updates for Xwayland and X server

Critical updates for Xwayland 24.1.12 and xserver 21.1.23 were released to address multiple vulnerabilities.

2026-06-02

Multiple vulnerabilities disclosed by ZDI

ZDI disclosed vulnerabilities ZDI-CAN-30136 to ZDI-CAN-30168 affecting Fedora 44 components.

2026-06-03

Fedora 44 update notification issued

Fedora issued notifications for the critical updates, urging users to upgrade their systems.

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Threat Graph

3 entities, 2 inferred relationships (STIX 2.1).

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Organization (1)

Fedora

Affected Platform (2)

Xorg-x11-server-xwayland
Xwayland

Relationships

Xorg-x11-server-xwayland related to Fedora
Xorg-x11-server-xwayland related to Xwayland

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