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TI-2026-25972 Aliases CVE-2026-33590GHSA-frhv-529m-5v9v

Insecure default permissions in Portainer CE

Priority LOW 39CWE-276Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00452 39th percentileScored 2026-11-07
Fix Fixed Portainer Community Edition (Portainer): 2.39.0, 2.38.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
portainerPortainer Community Editionbefore 2.39.0; before 2.38.02.39.0, 2.38.0Patch availableCNA
  • Portainer Community Edition Vendorportainer Affected before 2.39.0; before 2.38.0 Fixed in 2.39.0, 2.38.0 Patch available CNA

Remediation

  • Fix · CNA Portainer Community Edition (Portainer) Fixed in 2.39.0, 2.38.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33590
  2. 2026-10-03 Alias added: GHSA-frhv-529m-5v9v

References

Advisory 1

Other 2

  • TI-2026-32726 Portainer: Missing authorization on Docker plugin endpoints allows host RCE CVSS 4.0CRITICAL 9.4
  • TI-2026-32758 Portainer: JWT accepted in URL query leaks tokens to logs and referers CVSS 4.0HIGH 7.7
  • TI-2026-32727 Portainer: Endpoint security bypass via Swarm service create/update CVSS 4.0CRITICAL 9.4
  • TI-2020-14859 Portainer 1.24.1 and earlier is affected by incorrect access control that may lead to… CVSS 3.1CRITICAL 9.8
  • TI-2024-22245 Portainer before 2.20.0 allows redirects when the target is not index.yaml. CVSS 3.1CRITICAL 9.1
  • TI-2018-13786 A vulnerability was found in Portainer before 1.20.0. CVSS 3.0CRITICAL 9.8
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences