CVE-2026-109088
libXtst RECORD EnableContext Reply Endless Loop
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: suseAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| libXtst X.org libXtst
|
≥ 0; < 1.2.6 (affected, rpm)
Other versions: unaffected |
CNA: suse |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CNA: suse |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://gitlab.freedesktop.org/xorg/lib/libxtst/-/merge_requests/11CNA: suse · patch
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