Container Management Vulnerability in Portainer Community Edition
CVE-2026-44849

9.4CRITICAL

Key Information:

Vendor

Portainer

Status
Portainer
Vendor
CVE Published:
28 May 2026

What is CVE-2026-44849?

A vulnerability exists in Portainer Community Edition allowing non-admin users to potentially bypass security settings. While administrative restrictions for privileged modes, host PID namespace, device mapping, capabilities, sysctls, security options, and bind mounts are enforced during standard container setups, some restrictions fail to apply in the Docker Swarm service API. This oversight may enable unauthorized actions in container configurations. The issue has been addressed in versions 2.33.8, 2.39.2, and 2.41.0.

Affected Version(s)

portainer >= 2.33.0, < 2.33.8 < 2.33.0, 2.33.8

portainer >= 2.39.0, < 2.39.2 < 2.39.0, 2.39.2

portainer >= 2.40.0, < 2.41.0 < 2.40.0, 2.41.0

References

https://github.com/portainer/portainer/security/advisorie...
x_refsource_CONFIRM

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.