CVE-2026-109088

libXtst RECORD EnableContext Reply Endless Loop

State
Published
Severity
6.5 Medium
Published
Oct 27, 2026
Updated
Oct 27, 2026
Reserved
Oct 12, 2026

Read the record on cve.org

Description

A malicious X server could send malformed  RECORD EnableContext reolies that can cause a X client using the parse_reply_call_callback function in libXtst before 1.2.6 to enter a endless loop.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsuse

Weaknesses

  • CWE-835 Loop with unreachable exit condition ('infinite loop')

Affected Products

ProductVersions
libXtstX.org
  • before 1.2.6Affected

References

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