CVE-2025-13653 Unauthorized access to documents in data streams with specially crafted requests

Medium 4.3 Published Updated

Authenticated users can read unauthorized documents from data streams via crafted requests when enterprise modules are disabled.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-13653?

CVE-2025-13653 is a medium-severity missing authorization vulnerability in floragunn Search Guard FLX, published on 1 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Search Guard FLX versions from 3.1.0 up to 4.0.0 with enterprise modules being disabled, there exists an issue which allows authenticated users to use specially crafted requests to read documents from data streams without having the respective privileges.

Weakness: CWE-863, CWE-200

Which versions are affected by CVE-2025-13653?

How do I fix CVE-2025-13653?

No fix has been published for CVE-2025-13653 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-2025-13653 being exploited?

There is no known exploitation of CVE-2025-13653 in the wild and no public exploit code.

Sources

Also known as GHSA-348g-pv2q-pj9p.

Is CVE-2025-13653 in your software?

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