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Vulnerabilities CVE-2026-44849

CVE-2026-44849

Critical
Open
TLP:CLEAR

Portainer: Endpoint security bypass via Swarm service create/update

NVD CVE.org
Critical Infrastructure

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Description

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.

Details

CVSS Score
9.4
EPSS Score
0.35%

27.5th percentile

CVSS 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
Confidence
90%
Published
May 28, 2026
Last Modified
May 28, 2026
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