CVE-2026-33590Insecure default settings of Portainer CE grant regular (non-admin) users privileges that allow host filesystem access and host-level code execution.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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, NVD)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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- 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
- Not given
- NVD analysis
- Awaiting Analysis
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://github.com/portainer/portainer/commit/3e2fdb1891e81a8e4c5c8beb60e45f07c8ecae52
- https://github.com/portainer/portainer/commit/ac8fa7672e732b44b970c9eaf928eddd2c68796c
- https://intwave.com/blog/2026/02/26/improving-portainer-security.html
- 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.