CVE-2025-29477 Denial of service in n/a

Medium 5.5 Published Updated

A local attacker can cause a denial of service in Fluent Bit via the consume_event function, requiring an upgrade to mitigate.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-29477?

CVE-2025-29477 is a medium-severity denial of service vulnerability in n/a, published on 4 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the function consume_event.

Weakness: CWE-400

Which versions are affected by CVE-2025-29477?

1 open source package ship an affected version, including fluent-bit. It affects 1 product.

PackageAffectedFixed in
fluent-bit BitnamiAll versionsNone

Products include Treasuredata Fluent Bit.

How do I fix CVE-2025-29477?

No fix has been published for CVE-2025-29477 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-29477 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29477 exists.

Sources

Also known as AZL-59582, AZL-59586, BIT-fluent-bit-2025-29477, GHSA-8h3v-hh74-r7p2.

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