{"id":"CVE-2026-4064","aliases":["EUVD-2026-12637","GHSA-979h-vff8-97jm"],"status":"published","title":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before...","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","severity":{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00345,"percentile":0.28302,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-03-17T19:14:17Z","modified":"2026-06-17T10:55:55Z","products":[{"vendor":"devolutions","product":"powershell universal"},{"vendor":"ironmansoftware","product":"powershell_universal"}],"references":[{"url":"https://devolutions.net/security/advisories/DEVO-2026-0008","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4064"},{"url":"https://github.com/advisories/GHSA-979h-vff8-97jm"}],"sources":{"cve":[{"id":"CVE-2026-4064","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","status":"published","published":"2026-03-17T19:14:17.189Z","modified":"2026-03-17T20:03:19.106Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"adp"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-12637","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","status":"published","published":"2026-03-17T19:14:17Z","modified":"2026-03-17T20:03:19Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T19:25:33.306068Z"}],"ghsa":[{"id":"GHSA-979h-vff8-97jm","title":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before...","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","status":"published","published":"2026-03-17T21:31:45Z","modified":"2026-03-17T21:31:53Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:06:40.510126Z"}],"nvd":[{"id":"CVE-2026-4064","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","status":"published","published":"2026-03-17T20:16:14.717Z","modified":"2026-06-17T10:55:55.76Z","cvss":[{"version":"3.1","score":8.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:09.735529Z"}]}}