Incorrect Permission Assignment for Critical Resource Affecting tigervnc package, versions <0:1.15.0-9.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.25% (16th percentile)

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  • Snyk IDSNYK-ALMALINUX8-TIGERVNC-16427168
  • published6 May 2026
  • disclosed19 May 2026

Introduced: 6 May 2026

CVE-2026-34352  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 tigervnc to version 0:1.15.0-9.el8_10 or higher.
This issue was patched in ALSA-2026:13414.

NVD Description

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

In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.

CVSS Base Scores

version 3.1