AZL-89540
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89540.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-89540
- Upstream
- Published
- 2026-06-05T12:16:39Z
- Modified
- 2026-09-13T05:26:06Z
- Summary
- CVE-2026-50261 affecting package xorg-x11-server 1.20.10-6
- Details
-
A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.
- References