Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libxtst package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.27% (20th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-LIBXTST-21762309
  • published28 Oct 2026
  • disclosed27 Oct 2026

Introduced: 27 Oct 2026

NewCVE-2026-109088  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest libxtst.

NVD Description

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

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.