CVE-2026-33590

Insecure default permissions in Portainer CE

Published May 28, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Portainer
Portainer portainer Community Edition
Vendors & Products Portainer
Portainer portainer Community Edition
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Insecure default permissions in Portainer CE
Weaknesses CWE-276
References
Metrics cvssV4_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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ENISA
Published
Updated
Jun 12, 2026, 3:02 PM
Reserved
Mar 23, 2026, 12:53 PM
Status
Awaiting Analysis
Published
May 28, 2026, 8:16 PM
Modified
Oct 26, 2026, 1:10 PM