ALSA-2026:91366

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Source
https://errata.almalinux.org/10/ALSA-2026-91366.html
Import Source
https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:91366.json
JSON Data
https://api.osv.dev/v1/vulns/ALSA-2026:91366
Upstream
Related
Published
2026-10-27T00:00:00Z
Modified
2026-10-29T11:31:10Z
Summary
Important: libX11 security update
Details

The libX11 packages contain the core X11 protocol client library.

Security Fix(es):

  • libX11: libX11: Heap-based buffer overflow via malicious X server (CVE-2026-88806)

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.

References

Affected packages

AlmaLinux:10 / libX11

Package

Name
libX11
Purl
pkg:rpm/almalinux/libX11

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.10-1.el10_2.1

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:91366.json"

AlmaLinux:10 / libX11-common

Package

Name
libX11-common
Purl
pkg:rpm/almalinux/libX11-common

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.10-1.el10_2.1

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:91366.json"

AlmaLinux:10 / libX11-devel

Package

Name
libX11-devel
Purl
pkg:rpm/almalinux/libX11-devel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.10-1.el10_2.1

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:91366.json"

AlmaLinux:10 / libX11-xcb

Package

Name
libX11-xcb
Purl
pkg:rpm/almalinux/libX11-xcb

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.8.10-1.el10_2.1

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:91366.json"