CVE-2026-72533
Last modified
CVE-2026-72533 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.
Description
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 attacker root-level access to the underlying Docker host.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Portainer | Portainer CE | <= 2.44.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-72533?
How severe is CVE-2026-72533?
How do I fix CVE-2026-72533?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-7250GitLab has remediated an issue in GitLab CE/EE affecting all…7.5
- CVE-2026-7251Eppendorf BioFlo 320 is vulnerable due to VNC server using a…9.8
- CVE-2026-7252The WP-Optimize – Cache, Compress images, Minify & Clean dat…8.1
- CVE-2026-72522libexpat before 2.8.3 has an out-of-bounds read and resultan…6.2
- CVE-2026-72526A flaw was found in the multicloud-integrations component. T…9.9
- CVE-2026-7253IBM Sterling B2B Integrator and IBM Sterling File Gateway ar…6
- CVE-2026-72534A privilege escalation vulnerability in Authentik Security a…8.8
- CVE-2026-72535A missing authentication vulnerability in Chaskiq through co…8.6
- CVE-2026-72536A missing authentication vulnerability in Chaskiq through co…8.6
- CVE-2026-72537A privilege escalation vulnerability in Authentik Security a…8.8
- CVE-2026-72538An argument injection vulnerability in PrefectHQ Prefect thr…8.8
- CVE-2026-72539An information disclosure vulnerability in Windmill Labs Win…6.5
Are you affected by CVE-2026-72533?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST