Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89543.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-89543
Upstream
Published
2026-06-05T12:16:40Z
Modified
2026-08-30T05:24:52Z
Summary
CVE-2026-50264 affecting package xorg-x11-server 1.20.10-6
Details

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.

References

Affected packages

Azure Linux:3 / xorg-x11-server

Package

Name
xorg-x11-server
Purl
pkg:rpm/azure-linux/xorg-x11-server

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.20.10-6

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89543.json"