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Critical Security Updates for Fedora Address Multiple CVEs

Critical Security Updates for Fedora Address Multiple CVEs

First seen 11 Jul 2026, 23:28 UTC • •
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ThreatCluster AI
ThreatCluster •July 12, 2026 at 23:11 UTC

Fedora has released critical updates for two components, Xwayland and OpenImageIO, addressing vulnerabilities CVE-2026-55999, CVE-2026-56000, and CVE-2024-55195. The updates were published on July 8, 2026, and July 12, 2026, respectively. CVE-2026-55999 and CVE-2026-56000 affect Fedora 43 and 44's Xwayland, while CVE-2024-55195 impacts OpenImageIO in Fedora 44. The vulnerabilities could allow attackers to exploit allocation size issues, potentially leading to denial of service or other malicious activities. Users are advised to apply the updates using the 'dnf' command. The updates are critical for maintaining system integrity and security. Failure to update may leave systems vulnerable to exploitation.

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Timeline

2025-01-23
CVE-2024-55195 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-07-08
CVE-2026-55999 and CVE-2026-56000 published
Fedora released updates for Xwayland addressing critical vulnerabilities affecting versions 43 and 44.
Linuxsecurity
2026-07-10
Fedora 44 Xwayland update released
Update 24.1.13-1 for Xwayland includes security fixes for CVE-2026-55999 and CVE-2026-56000.
Linuxsecurity
2026-07-12
Fedora 44 OpenImageIO security advisory published
Update addresses CVE-2024-55195, an allocation-size bug in OpenImageIO, requiring immediate patching.
Linuxsecurity

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