CVE-2026-71299 Maestro: maestro: rest api write endpoints registered without authentication middleware
Remote attackers can perform unauthorized write operations on REST API endpoints, leading to data integrity issues or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71299?
CVE-2026-71299 is a medium-severity missing authorization vulnerability in Red Hat Multicluster Engine for Kubernetes, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Maestro. Its REST API write endpoints were registered without proper authentication middleware. This allows a remote attacker to perform unauthorized write operations, such as creating, modifying, or deleting consumers and resource bundles. This could lead to data integrity issues or a denial of service (DoS).
Weakness: CWE-306
Which versions are affected by CVE-2026-71299?
How do I fix CVE-2026-71299?
No fix has been published for CVE-2026-71299 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-71299 being exploited?
There is no known exploitation of CVE-2026-71299 in the wild and no public exploit code.
Sources
Also known as GHSA-q53x-4qpm-q53m.