{"id":"CVE-2026-7791","aliases":["EUVD-2026-27149","GHSA-rp3m-v2vr-fvq8"],"status":"published","title":"Local Privilege Escalation via TOCTOU Race Condition in Amazon WorkSpaces Skylight Agent","description":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00147,"percentile":0.03908,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-367"],"published":"2026-05-04T22:07:35Z","modified":"2026-10-26T19:10:00Z","exploits":[{"source":"pocgithub","id":"BenZamir/CVE-2026-7791","title":"BenZamir/CVE-2026-7791","date":"2026-05-24","url":"https://github.com/BenZamir/CVE-2026-7791"}],"products":[{"vendor":"@turbo","product":"workspaces"},{"vendor":"amazon","product":"workspaces"}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-025-aws/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7791"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-025-aws"},{"url":"https://github.com/advisories/GHSA-rp3m-v2vr-fvq8"}],"sources":{"cve":[{"id":"CVE-2026-7791","title":"Local Privilege Escalation via TOCTOU Race Condition in Amazon WorkSpaces Skylight Agent","description":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.","status":"published","published":"2026-05-04T22:07:35.68Z","modified":"2026-10-20T18:54:15.148Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:20:06.216584Z"}],"euvd":[{"id":"EUVD-2026-27149","description":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.","status":"published","published":"2026-05-04T22:07:35Z","modified":"2026-10-20T18:54:15Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:59:43.145678Z"}],"ghsa":[{"id":"GHSA-rp3m-v2vr-fvq8","title":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config...","description":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.","status":"published","published":"2026-05-05T00:30:22Z","modified":"2026-05-05T00:30:30Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:07:54.707151Z"}],"nvd":[{"id":"CVE-2026-7791","description":"Improper privilege management in the log rotation mechanism of the Skylight Workspace Config Service in Amazon WorkSpaces for Windows before 2.6.2034.0 allows a local non-admin authenticated user to place arbitrary files into arbitrary locations bypassing file system permission protections, leading to local privilege escalation to SYSTEM.","status":"published","published":"2026-05-04T22:16:20.697Z","modified":"2026-10-26T19:10:00.163Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:12:17.022502Z"}]}}