{"id":"CVE-2026-109088","aliases":["ALPINE-CVE-2026-109088","AZL-111172","BELL-CVE-2026-109088","DEBIAN-CVE-2026-109088","EUVD-2026-111114","GHSA-4rpx-8967-p725","MGASA-2026-0543","OESA-2026-4572","OESA-2026-4573","OESA-2026-4574","OESA-2026-4575","UBUNTU-CVE-2026-109088","openSUSE-SU-2026:12155-1"],"status":"published","title":"libXtst RECORD EnableContext Reply Endless Loop","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00272,"percentile":0.19821,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-835"],"published":"2026-10-16T00:00:00Z","modified":"2026-11-06T14:16:55Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"libxtst","fixed_in":["1.2.6-r0"],"sources":["osv"]},{"ecosystem":"Azure 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/www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4573","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4574","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4575","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-109088","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109088","tags":["report"]},{"url":"https://lists.x.org/archives/xorg-announce/2026-October/003752.html","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-109088","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-109088","title":"libXtst RECORD EnableContext Reply Endless Loop","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.","status":"published","published":"2026-10-27T16:26:20.597Z","modified":"2026-11-04T17:46:18.017Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-835"],"updated_at":"2026-11-04T19:06:09.086833Z"}],"euvd":[{"id":"EUVD-2026-111114","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.","status":"published","published":"2026-10-27T16:26:20Z","modified":"2026-11-04T17:46:18Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-04T19:12:51.694741Z"}],"ghsa":[{"id":"GHSA-4rpx-8967-p725","title":"A malicious X server could send malformed  RECORD EnableContext reolies that can cause a X client...","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.","status":"published","published":"2026-10-27T18:31:41Z","modified":"2026-10-27T18:31:42Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T15:14:30.732607Z"}],"nvd":[{"id":"CVE-2026-109088","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.","status":"published","published":"2026-10-27T17:16:57.68Z","modified":"2026-11-04T18:17:36.6Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-835"],"updated_at":"2026-11-04T20:08:23.117709Z"}],"osv":[{"id":"ALPINE-CVE-2026-109088","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.","status":"published","published":"2026-10-27T17:16:57.68Z","modified":"2026-10-28T10:30:02.348645317Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:50.269992Z"},{"id":"BELL-CVE-2026-109088","status":"published","published":"2026-10-23T13:11:16.123679Z","modified":"2026-11-04T07:15:58.828763714Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-04T07:31:49.594962Z"},{"id":"CVE-2026-109088","title":"libXtst RECORD EnableContext Reply Endless Loop","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 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libXtst runtime library\r\n\r\nSecurity Fix(es):\n\nX.Org reports: Multiple issues have been found in the X client library implementations published by X.Org for which we are releasing security fixes for.(CVE-2026-109088)","status":"published","published":"2026-10-29T09:03:07Z","modified":"2026-10-29T09:15:31.109550055Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:52:47.981622Z"},{"id":"OESA-2026-4575","title":"libXtst security update","description":"X.Org X11 libXtst runtime library\r\n\r\nSecurity Fix(es):\n\nX.Org reports: Multiple issues have been found in the X client library implementations published by X.Org for which we are releasing security fixes 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the parse_reply_call_callback function in libXtst before 1.2.6 to enter a endless loop.","status":"published","published":"2026-10-27T17:16:57Z","modified":"2026-11-06T14:16:55.84170216Z","updated_at":"2026-11-06T14:57:15.495576Z"},{"id":"MGASA-2026-0543","title":"Updated libxtst, libxrender, libxi packages fix security vulnerabilities","description":"The updated packages fix security vulnerabilities:\nlibXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow.\n(CVE-2026-109089)\nlibXi XGetDeviceControl DEVICE_ENABLE Heap Buffer Overflow.\n(CVE-2026-109090)\nOut-of-bounds read in libXrender's XRenderQueryFormat reply parser.\n(CVE-2026-88807)\nlibXtst RECORD EnableContext Reply Endless Loop. (CVE-2026-109088)\n","status":"published","published":"2026-10-26T15:28:20Z","modified":"2026-10-26T15:43:21.640113348Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:12155-1","title":"libXtst-devel-1.2.5-3.1 on GA media","description":"These are all security issues fixed in the libXtst-devel-1.2.5-3.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-10-16T00:00:00Z","modified":"2026-10-17T10:00:05.095862641Z","updated_at":"2026-11-02T16:58:40.245664Z"}]}}