RLSA-2026:98564

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Source
https://errata.rockylinux.org/RLSA-2026:98564
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:98564
Upstream
Published
2026-11-13T12:06:37Z
Modified
2026-11-13T12:45:13Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
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.

Database specific 
{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:98564"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10
libX11-debugsource

Package

Name
libX11-debugsource
Purl
pkg:rpm/rocky-linux/libX11-debugsource?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11

Package

Name
libX11
Purl
pkg:rpm/rocky-linux/libX11?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb

Package

Name
libX11-xcb
Purl
pkg:rpm/rocky-linux/libX11-xcb?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb-debuginfo

Package

Name
libX11-xcb-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-xcb-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debuginfo

Package

Name
libX11-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-devel

Package

Name
libX11-devel
Purl
pkg:rpm/rocky-linux/libX11-devel?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-devel

Package

Name
libX11-devel
Purl
pkg:rpm/rocky-linux/libX11-devel?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb

Package

Name
libX11-xcb
Purl
pkg:rpm/rocky-linux/libX11-xcb?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb-debuginfo

Package

Name
libX11-xcb-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-xcb-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11

Package

Name
libX11
Purl
pkg:rpm/rocky-linux/libX11?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debuginfo

Package

Name
libX11-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debugsource

Package

Name
libX11-debugsource
Purl
pkg:rpm/rocky-linux/libX11-debugsource?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11

Package

Name
libX11
Purl
pkg:rpm/rocky-linux/libX11?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb

Package

Name
libX11-xcb
Purl
pkg:rpm/rocky-linux/libX11-xcb?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb-debuginfo

Package

Name
libX11-xcb-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-xcb-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-devel

Package

Name
libX11-devel
Purl
pkg:rpm/rocky-linux/libX11-devel?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debugsource

Package

Name
libX11-debugsource
Purl
pkg:rpm/rocky-linux/libX11-debugsource?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debuginfo

Package

Name
libX11-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debugsource

Package

Name
libX11-debugsource
Purl
pkg:rpm/rocky-linux/libX11-debugsource?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11

Package

Name
libX11
Purl
pkg:rpm/rocky-linux/libX11?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb-debuginfo

Package

Name
libX11-xcb-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-xcb-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-xcb

Package

Name
libX11-xcb
Purl
pkg:rpm/rocky-linux/libX11-xcb?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-debuginfo

Package

Name
libX11-debuginfo
Purl
pkg:rpm/rocky-linux/libX11-debuginfo?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-devel

Package

Name
libX11-devel
Purl
pkg:rpm/rocky-linux/libX11-devel?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"
libX11-common

Package

Name
libX11-common
Purl
pkg:rpm/rocky-linux/libX11-common?distro=rocky-linux-10&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:1.8.13-1.el10_3.1
Database specific
Show details 
{
    "yum_repository": "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:98564.json"