PatchTheCEVCVE-2026-72533: An authentication bypass vulnerability in Portainer CE through 2.44.0 allows authenticated low-privileged user
42
This month
HIGH 8.8
CVE-2026-72533 is a high-severity flaw (CVSS 8.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 proxy endpoint fails to normalize request paths before applying access controls, allowing crafted requests to be interpreted differently by the proxy and the authorization layer. Successful exploitation grants the
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.6% (top 54%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2026-08-11 |
| Last modified | 2026-10-23 |
Publisher (CNA): TuranSec
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source
sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.