CVE-2025-49127 Kafbat UI vulnerable to Remote Code Execution by JMX in Metrices Configuration

High 8.9 Published Updated

Unauthenticated attackers can execute arbitrary code on Kafbat UI servers via unsafe deserialization in JMX metrics configuration.

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-2025-49127?

CVE-2025-49127 is a high-severity unsafe deserialization vulnerability in kafbat kafka-ui, published on 6 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Kafbat UI is a web user interface for managing Apache Kafka clusters. An unsafe deserialization vulnerability in version 1.0.0 allows any unauthenticated user to execute arbitrary code on the server. Version 1.1.0 fixes the issue.

Weakness: CWE-502

Which versions are affected by CVE-2025-49127?

How do I fix CVE-2025-49127?

No fix has been published for CVE-2025-49127 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-49127 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-49127 exists.

Sources

Also known as GHSA-g3mf-c374-fgh2.

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