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Rocky Linux xorg-x11-server Key RLSA-2026-26610 Buffer Overflow Issues

rocky
Calendar Grey June 19, 2026
Rockylinux Esm H88
Critical security updates for xorg-x11-server on Rocky Linux address multiple vulnerabilities including buffer overflows and use-after-free issues.
Important: xorg-x11-server security, bug fix, and enhancement update

Summary

An update is available for xorg-x11-server. This update affects Rocky Linux 9. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list


Topics%20covered

Topics Covered

security advisory buffer overflow important Xorg X11 Server use-after-free rocky linux

RPMs

xorg-x11-server-Xorg-debuginfo-0:1.20.11-34.el9_8.2.x86_64.rpm

xorg-x11-server-0:1.20.11-34.el9_8.2.src.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.2.aarch64.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.2.ppc64le.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.2.s390x.rpm

xorg-x11-server-common-0:1.20.11-34.el9_8.2.x86_64.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.2.aarch64.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.2.ppc64le.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.2.s390x.rpm

xorg-x11-server-debuginfo-0:1.20.11-34.el9_8.2.x86_64.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.2.aarch64.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.2.i686.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.2.ppc64le.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.2.s390x.rpm

xorg-x11-server-debugsource-0:1.20.11-34.el9_8.2.x86_64.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.2.aarch64.rpm

xorg-x11-server-devel-0:1.20.11-34.el9_8.2.i686.rpm

Read the Full Advisory

References

No references

CVES

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50256

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50257

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50258

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50259

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50260

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50261

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50262

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50263

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-50264

Severity
important

Name: RLSA-2026:26610
Affected Products: Rocky Linux 9

Fixes

https://bugzilla.redhat.com/show_bug.cgi?id=2485380

https://bugzilla.redhat.com/show_bug.cgi?id=2485382

https://bugzilla.redhat.com/show_bug.cgi?id=2485383

https://bugzilla.redhat.com/show_bug.cgi?id=2485384

https://bugzilla.redhat.com/show_bug.cgi?id=2485385

https://bugzilla.redhat.com/show_bug.cgi?id=2485386

https://bugzilla.redhat.com/show_bug.cgi?id=2485387

https://bugzilla.redhat.com/show_bug.cgi?id=2485388

https://bugzilla.redhat.com/show_bug.cgi?id=2485389


Topics%20covered

Topics Covered

security advisory buffer overflow important Xorg X11 Server use-after-free rocky linux

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