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Party Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-50257"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2485382"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50257.json"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."},{"kind":"fix","source":"ADP: redhat-SADP","text":"RHSA-2026:49519: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION), Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)\n\nRHSA-2026:46473: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)\n\nRHSA-2026:36083: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)\n\nRHSA-2026:36798: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)\n\nRHSA-2026:26566: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\n\nRHSA-2026:28923: Red Hat Enterprise Linux AppStream (v. 8)\n\nRHSA-2026:26709: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)\n\nRHSA-2026:26562: Red Hat Enterprise Linux AppStream (v. 8)\n\nRHSA-2026:46382: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)\n\nRHSA-2026:36792: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)\n\nRHSA-2026:46460: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)\n\nRHSA-2026:36791: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)\n\nRHSA-2026:38810: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)\n\nRHSA-2026:46385: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)\n\nRHSA-2026:36768: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)\n\nRHSA-2026:38502: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)\n\nRHSA-2026:46377: Red Hat Enterprise Linux AppStream E4S (v.9.2)\n\nRHSA-2026:36086: Red Hat Enterprise Linux AppStream E4S (v.9.2)\n\nRHSA-2026:36633: Red Hat Enterprise Linux AppStream E4S (v.9.2)\n\nRHSA-2026:46456: Red Hat Enterprise Linux AppStream E4S (v.9.4)\n\nRHSA-2026:36087: Red Hat Enterprise Linux AppStream E4S (v.9.4)\n\nRHSA-2026:36632: Red Hat Enterprise Linux AppStream E4S (v.9.4)\n\nRHSA-2026:46392: Red Hat Enterprise Linux AppStream EUS (v.9.6)\n\nRHSA-2026:36085: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)\n\nRHSA-2026:36634: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)\n\nRHSA-2026:29844: Red Hat Enterprise Linux AppStream (v. 9)\n\nRHSA-2026:26610: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\n\nRHSA-2026:26590: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"},{"kind":"fix","source":"secalert@redhat.com","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://gitlab.freedesktop.org/xorg/xserver/-/commit/f5abfb61994471023d8c6470428c8e30c411cc0b"}],"revision":"9ba78e58f4968751e9096ff012fc7257a01ac7f27c4e95cef866dee35ba0f868","sources":[{"modifiedAt":1793832189925,"name":"CNA: redhat","retrievedAt":1793833869473,"url":"https://www.cve.org/CVERecord?id=CVE-2026-50257"},{"modifiedAt":1793834261097,"name":"NVD","retrievedAt":1793838017951,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50257"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793833885101,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-50257"}],"ssvc":{"assessedAt":1780963200000,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()","updatedAt":1793838017951}