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Use After Free The advisory has been revoked - it doesn't affect any version of package tigervnc-server-applet  (opens in a new tab)

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EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-RHEL7-TIGERVNCSERVERAPPLET-17327208
  • published12 Jun 2026
  • disclosed2 Jun 2026
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Introduced: 2 Jun 2026

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

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server-applet package and not the tigervnc-server-applet package as distributed by RHEL.

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