CLSA-2026-1782904895

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1782904895
Upstream
CVE (6)
Published
2026-07-01T11:21:57Z
Modified
2026-10-26T09:30:24Z
Summary
tigervnc: Fix of 6 CVEs
Details
  • CVE-2026-50256: fix stack overflow in font alias resolution by widening XLFDMAXFONTNAMELEN to match libXfont2 MAXFONTNAMELEN (bundled Xvnc xserver)
  • CVE-2026-50257: fix use-after-free of sync fences in miSyncDestroyFence
  • CVE-2026-50258: fix stack overflow in XKB CheckKeyTypes
  • CVE-2026-50259: fix stack overflow in XKB _XkbSetMapChecks key-type check
  • CVE-2026-50260: fix use-after-free of sync counters in FreeCounter
  • CVE-2026-50261: fix use-after-free in SyncChangeCounter
  • patches backported into the bundled xserver 21.1.3 tree, reused from the xorg-x11-server-Xwayland sibling change
References

Affected packages

TuxCare:AlmaLinux:9.2
tigervnc

Package

Name
tigervnc
Purl
pkg:rpm/tuxcare/tigervnc?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-icons

Package

Name
tigervnc-icons
Purl
pkg:rpm/tuxcare/tigervnc-icons?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-license

Package

Name
tigervnc-license
Purl
pkg:rpm/tuxcare/tigervnc-license?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-selinux

Package

Name
tigervnc-selinux
Purl
pkg:rpm/tuxcare/tigervnc-selinux?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-server

Package

Name
tigervnc-server
Purl
pkg:rpm/tuxcare/tigervnc-server?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-server-minimal

Package

Name
tigervnc-server-minimal
Purl
pkg:rpm/tuxcare/tigervnc-server-minimal?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"
tigervnc-server-module

Package

Name
tigervnc-server-module
Purl
pkg:rpm/tuxcare/tigervnc-server-module?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.12.0-13.el9_2.tuxcare.els25

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1782904895.json"