Use After Free Affecting tigervnc-server-minimal package, versions <0:1.15.0-10.el8_10


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-ORACLE8-TIGERVNCSERVERMINIMAL-17444852
  • published24 Jun 2026
  • disclosed5 Jun 2026

Introduced: 5 Jun 2026

CVE-2026-50263  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:8 tigervnc-server-minimal to version 0:1.15.0-10.el8_10 or higher.
This issue was patched in ELSA-2026-28923.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server-minimal package and not the tigervnc-server-minimal package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.

References

CVSS Base Scores

version 3.1