What is CVE-2026-72533?

CVE-2026-72533 is a high-severity vulnerability in Portainer Ce, classified under Improper Authentication. CVSS score: 8.8/10. Published 2026-08-11.

How severe is CVE-2026-72533?

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

Auth bypass in Portainer Ce

CVE-2026-72533

An authentication bypass vulnerability in Portainer CE through 2.44.0 allows authenticated low-privileged users to bypass Docker proxy authorization checks via non-canonical URL normalization, defeating all authorization middleware. The pr…

Vulnerability class: Broken Authentication

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 Ce — versions 0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c

Frequently asked questions

What is CVE-2026-72533?: CVE-2026-72533 is a high-severity vulnerability in Portainer Ce, classified under Improper Authentication. CVSS score: 8.8/10. Published 2026-08-11.
How severe is CVE-2026-72533?: High severity. CVSS v3 base score is 8.8 out of 10.