{"id":"CVE-2026-109088","title":"libXtst RECORD EnableContext Reply Endless Loop","summary":"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.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-835"],"vendor":"X.org","product":"libXtst","affected":["libXtst < 1.2.6"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T16:26:20.597Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109088","references":[{"url":"https://gitlab.freedesktop.org/xorg/lib/libxtst/-/merge_requests/11"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T17:33:23.803Z","slug":"CVE-2026-109088","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `libXtst < 1.2.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}