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CLSA-2026-1790584501
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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1790584501
Upstream
CVE (3)
CVE-2026-50262
CVE-2026-50263
CVE-2026-55999
Published
2026-10-17T02:45:55Z
Modified
2026-10-26T09:31:59Z
Summary
xorg-x11-server: Fix of 6 CVEs
Details
CVE-2026-50262: fix reversed request length check in GLX ChangeDrawableAttributes leading to out-of-bounds read/write
CVE-2026-50263: fix use-after-free of the screen private in ScreenSaver CreateSaverWindow() after CheckScreenPrivate()
CVE-2026-55999: fix heap buffer overflow in glamor_font_get() on fonts with per-glyph metrics exceeding maxbounds
References
https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1790584501.html
https://nvd.nist.gov/vuln/detail/CVE-2026-33999
https://nvd.nist.gov/vuln/detail/CVE-2026-34001
https://nvd.nist.gov/vuln/detail/CVE-2026-34003
https://nvd.nist.gov/vuln/detail/CVE-2026-50262
https://nvd.nist.gov/vuln/detail/CVE-2026-50263
https://nvd.nist.gov/vuln/detail/CVE-2026-55999
Affected packages
TuxCare:RHEL:7
xorg-x11-server-Xdmx
Package
Name
xorg-x11-server-Xdmx
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xdmx?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-Xephyr
Package
Name
xorg-x11-server-Xephyr
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xephyr?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-Xnest
Package
Name
xorg-x11-server-Xnest
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xnest?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-Xorg
Package
Name
xorg-x11-server-Xorg
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xorg?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-Xvfb
Package
Name
xorg-x11-server-Xvfb
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xvfb?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-Xwayland
Package
Name
xorg-x11-server-Xwayland
Purl
pkg:rpm/tuxcare/xorg-x11-server-Xwayland?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-common
Package
Name
xorg-x11-server-common
Purl
pkg:rpm/tuxcare/xorg-x11-server-common?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-devel
Package
Name
xorg-x11-server-devel
Purl
pkg:rpm/tuxcare/xorg-x11-server-devel?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
xorg-x11-server-source
Package
Name
xorg-x11-server-source
Purl
pkg:rpm/tuxcare/xorg-x11-server-source?distro=rhel-7
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
1.20.4-99.el7_9.tuxcare.els14
Database specific
source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1790584501.json"
CLSA-2026-1790584501 - OSV