What is CVE-2026-44882?

CVE-2026-44882 is a high-severity vulnerability in Portainer, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-05-28.

How severe is CVE-2026-44882?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Portainer

CVE-2026-44882

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., Portainer proxies requests to Kub…

Vulnerability class: Broken Access Control

EPSS: 0.001 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Portainer — versions >= 2.33.0, < 2.33.8

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2026-44882?: CVE-2026-44882 is a high-severity vulnerability in Portainer, classified under Incorrect Authorization. CVSS score: 8.1/10. Published 2026-05-28.
How severe is CVE-2026-44882?: High severity. CVSS v3 base score is 8.1 out of 10.