What is CVE-2026-44849?

CVE-2026-44849 is a high-severity vulnerability in Portainer, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-05-28.

How severe is CVE-2026-44849?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Portainer

CVE-2026-44849

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 en…

Vulnerability class: Broken Access Control

EPSS: 0.000 (13.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Portainer — versions 2.40.0, >= 2.39.0, < 2.39.2, >= 2.40.0, < 2.41.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-44849?: CVE-2026-44849 is a high-severity vulnerability in Portainer, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-05-28.
How severe is CVE-2026-44849?: High severity. CVSS v3 base score is 8.8 out of 10.