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Vulnerability record · CVE-2026-44848 · published 28 May 2026

CVE-2026-44848: Portainer missing authorization vulnerability

Portainer · Portainer

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, The Docker plugin management endpoints (/plugins/*) were not registered with a handler, so standard users with endpoint access could call privileged plugin operations — including installing and enabling plugins — directly against the underlying Docker daemon. The vulnerability is exposed when a non-admin Portainer user (Standard User role, or any role granted endpoint-level access) has been given access to a Docker endpoint via Portainer RBAC. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.

9.4 CVSS 4.0 Critical EPSS 0.45% · top 63.7% CWE-862 · Missing authorization
9.4CVSS 4.0 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
21 Jul 2026Last modified by NVD

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, The Docker plugin management endpoints (/plugins/*) were not registered with a handler, so standard users with endpoint access could call privileged plugin operations — including installing and enabling plugins — directly against the underlying Docker daemon. The vulnerability is exposed when a non-admin Portainer user (Standard User role, or any role granted endpoint-level access) has been given access to a Docker endpoint via Portainer RBAC. This vulnerability is fixed in 2.33.8, 2.39.2, and 2.41.0.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/portainer/portainer/security/advisories/GHSA-rrmm-9v76-h3p4 ExploitThird Party Advisory
https://github.com/portainer/portainer/security/advisories/GHSA-rrmm-9v76-h3p4 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2019-16872Portainer vulnerabilityPortainer before 1.22.1 has Incorrect Access Control (issue 1 of 4).EPSS 1.4%9.8CVE-2022-24961Portainer vulnerabilityIn Portainer Agent before 2.11.1, an API server can continue running even if not associated with a Portainer instance in the past few days.EPSS 1.6%9.8CVE-2020-24264Portainer incorrect authorization vulnerabilityPortainer 1.24.1 and earlier is affected by incorrect access control that may lead to remote arbitrary code execution. The restriction checks for bin…EPSS 4.1%9.8CVE-2018-19466Portainer insufficiently protected credentials vulnerabilityA vulnerability was found in Portainer before 1.20.0. Portainer stores LDAP credentials, corresponding to a master password, in cleartext and allows …EPSS 3.7%9.8CVE-2018-19367Portainer vulnerabilityPortainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is already created. This API endpoint will r…EPSS 1.5%9.8CVE-2018-12678Portainer server-side request forgery (ssrf) vulnerabilityPortainer before 1.18.0 supports unauthenticated requests to the websocket endpoint with an unvalidated id query parameter for the /websocket/exec en…EPSS 2.3%9.4CVE-2026-44849Portainer missing authorization vulnerabilityPortainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kuber…EPSS 0.45%9.1CVE-2024-33661Portainer open redirect vulnerabilityPortainer before 2.20.0 allows redirects when the target is not index.yaml.EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2026-44848), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.