High 8.5Published May 28, 2026

CVE-2026-33590Insecure default permissions in Portainer CE

Updated under an hour ago (Oct 27, 2026, 7:30 PM ET)

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It affects Portainer Community Edition. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Portainer Community Edition

Exploited in the last 30 days

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.

CVSS: 8.5 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-276
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: ENISA
NVD analysis: Awaiting Analysis
Record last updated: Jun 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Portainer Portainer Community Edition portainer:community_edition (from the name)	before 2.39.0; before 2.38.0	CNA record

References

References

https://intwave.com/blog/2026/02/26/improving-portainer-security.html	third-party-advisory
https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796c	issue-tracking
https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52	issue-tracking
http://www.openwall.com/lists/oss-security/2026/06/12/2

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.