CVE-2026-33590CWE-276

Insecure default permissions in Portainer CE

High · published May 28, 2026

CVSS v4.0
8.5
EPSS
1%
Percentile
42.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
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
EPSS
0.00514 · 42.9th percentile
Weakness
CWE-276 · Incorrect Default Permissions
Published
2026-05-28T19:30Z
EPSS history
Timeline
  • 28 MAY 19:30Z
    Insecure default permissions in Portainer CE
    cvelistv5