9.4

CVE-2026-44848: Portainer: Missing authorization on Docker plugin endpoints allows host RCE

Modified
AliasesGHSA-rrmm-9v76-h3p4GO-2026-5639
Published 28-05-2026Last modified 01-06-2026

Vulnerability summary

CVE-2026-44848 is a critical (CVSS 9.4) Missing Authorization vulnerability in portainer. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.5% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
9.4/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.40%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 28-05-2026
    PublishedVulnerability first disclosed.
  2. 01-06-2026
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 3 sources · 2 versions

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 0.45% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Portainer

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Github.com/portainer1 product
  • portainer≥ 2.33.0, < 2.33.8 | ≥ 2.39.0, < 2.39.2 | ≥ 2.40.0, < 2.41.0 | All versions (No fix recorded)
Portainer1 product
  • portainer≥ 2.39.0, < 2.39.2 | ≥ 2.40.0, < 2.41.0 | ≥ 2.33.0, < 2.33.8 | ≥ 2.34.0, < 2.39.2 | 2.40.0

2 vendors · 2 products

References

6 links