CVE-2026-33590
Insecure default permissions in Portainer CE
- State
- Published
- Severity
- 8.5 High
- Published
- May 28, 2026
- Updated
- Jun 12, 2026
- Reserved
- Mar 23, 2026
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
access on the host.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | 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 | ENISA |
Weaknesses
- CWE-276 Incorrect default permissions
Affected Products
| Product | Versions |
|---|---|
Portainer Community EditionPortainer |
|
References
- https://intwave.com/blog/2026/02/26/improving-portainer-security.htmlthird-party-advisory
- https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796cissue-tracking
- https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52issue-tracking
- http://www.openwall.com/lists/oss-security/2026/06/12/2
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