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CVE-2026-44849

Portainer: Endpoint security bypass via Swarm service create/update

Published: May 28, 2026Updated: Jun 1, 2026 Sources: CVE List NVD BDUCWE-862
8.8HIGH
NVD MITRE
EPSS Score
0.3%
Top 73.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-862

Affected Products

portainerportainer
On-prem
Cloud & SaaS / container-orchestration
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
PortainerСообщество свободного программного обеспечения
On-premWeb App
Cloud & SaaS / container-orchestration
portaineross-projectCloud & SaaS
ооо «ред софт»commercialRUOperating Systemsaka red soft
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/portainer/portainer/security/advisories/GHSA-5fxq-qcf3-244w
github.com
https://github.com/advisories/GHSA-5fxq-qcf3-244w
github.com
https://github.com/portainer/portainer/releases/tag/2.33.8
github.com
and 5 more references View all →

Timeline

Published
May 28, 2026
Last Updated
Jun 1, 2026

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