Vulnerability DatabaseCVE-2026-109088
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-109088
Published:October 27, 2026
Updated:November 01, 2026
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.
Affected Packages
xorg-libxtst (CONDA):
Affected version(s) >=1.2.3 <1.2.6
Fix Suggestion:
Update to version 1.2.6
https://gitlab.freedesktop.org/xorg/lib/libxtst.git (SCM_GIT):
Affected version(s) >=libXtst-1.0.2 <libXtst-1.2.6
Fix Suggestion:
Update to version libXtst-1.2.6
Related Resources (2)
https://gitlab.freedesktop.org/xorg/lib/libxtst/-/merge_requests/11
https://nvd.nist.gov/vuln/detail/CVE-2026-109088
Do you need more information?
Contact Us
CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Loop with Unreachable Exit Condition
CWE-835
EPSS
Base Score:
0.27