Vulnerability DatabaseCVE-2026-33590
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CVE-2026-33590
Published:May 28, 2026
Updated:June 13, 2026
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.
Affected Packages
https://github.com/portainer/portainer.git (GITHUB):
Affected version(s) >=edge_m2 <2.38.0
Fix Suggestion:
Update to version 2.38.0
Related Resources (4)
https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52
https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796c
http://www.openwall.com/lists/oss-security/2026/06/12/2
https://intwave.com/blog/2026/02/26/improving-portainer-security.html
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CVSS v4
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
Exploit Maturity
POC
CVSS v3
Base Score:
9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Incorrect Default Permissions
CWE-276
EPSS
Base Score:
0.06