{"id":"CVE-2026-33590","aliases":["EUVD-2026-33007","GHSA-frhv-529m-5v9v"],"status":"published","title":"Insecure default permissions in Portainer CE","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00452,"percentile":0.39671,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2026-05-28T19:30:06Z","modified":"2026-10-28T02:30:30Z","products":[{"vendor":"portainer","product":"portainer community edition"}],"references":[{"url":"https://intwave.com/blog/2026/02/26/improving-portainer-security.html","tags":["third-party-advisory","article"]},{"url":"https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796c","tags":["issue-tracking","fix"]},{"url":"https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52","tags":["issue-tracking","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/12/2","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33590"},{"url":"https://github.com/advisories/GHSA-frhv-529m-5v9v"}],"sources":{"cve":[{"id":"CVE-2026-33590","title":"Insecure default permissions in Portainer CE","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","status":"published","published":"2026-05-28T19:30:06.697Z","modified":"2026-06-12T15:02:52.515Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"high","assessor":"cna"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-33007","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","status":"published","published":"2026-05-28T19:30:06Z","modified":"2026-06-12T15:02:52Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"high"}],"updated_at":"2026-11-02T18:20:43.577088Z"}],"ghsa":[{"id":"GHSA-frhv-529m-5v9v","title":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow...","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","status":"published","published":"2026-05-28T21:32:03Z","modified":"2026-06-12T18:32:49Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T15:08:45.184845Z"}],"nvd":[{"id":"CVE-2026-33590","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","status":"published","published":"2026-05-28T20:16:23.163Z","modified":"2026-10-26T13:10:00.14Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-33590","description":"Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution. An authenticated non-administrative user with endpoint access can exploit these settings to read host files or obtain root equivalent \n\naccess on the host.","status":"published","published":"2026-05-28T20:16:23.163Z","modified":"2026-10-28T02:30:30.532142602Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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"}],"updated_at":"2026-11-02T15:45:01.896044Z"}]}}