CVE-2026-33590 | THREATINT

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.

PUBLISHED Reserved 2026-03-23 | Published 2026-05-28 | Updated 2026-05-29 | Assigner ENISA

HIGH: 8.5CVSS: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

Problem types

CWE-276 Incorrect default permissions

Product status

Default status

unaffected

Any version before 2.39.0

affected

Any version before 2.38.0

affected

References

intwave.com/.../2026/02/26/improving-portainer-security.html third-party-advisory

github.com/...ommit/ac8fa7672e732b44b970c9eaf928eddd2c68796c issue-tracking

github.com/...ommit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52 issue-tracking

cve.org (CVE-2026-33590)

nvd.nist.gov (CVE-2026-33590)

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