CVE-2026-44849CWE-862

Portainer: Endpoint security bypass via Swarm service create/update

Critical · published May 28, 2026

CVSS v4.0
9.4
EPSS
0%
Percentile
37.8
In the wild
Unconfirmed
What it is

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8, 2.39.2, and 2.41.0, Portainer enforces seven EndpointSecuritySettings restrictions that administrators configure to restrict the container configurations non-admin users can launch: privileged mode, host PID namespace, device mapping, capabilities, sysctls, security-opt (Seccomp / AppArmor), and bind mounts. These restrictions are enforced on the standard container creation path, but several of them are not applied on the Docker Swarm service API. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.

The record
Technical detail
CVSS v4.0
9.4 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00446 · 37.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-28T21:06Z
EPSS history
Timeline
  • 28 MAY 21:06Z
    Portainer: Endpoint security bypass via Swarm service create/update
    cvelistv5