What is the severity of CVE-2024-21655?

CVE-2024-21655 has been classified as a medium severity vulnerability due to its potential to exhaust disk space and bandwidth.

How do I fix CVE-2024-21655?

To fix CVE-2024-21655, update your Discourse instance to version 3.1.4 or later, or 3.2.0-beta4 or later.

What are the consequences of CVE-2024-21655 being exploited?

If CVE-2024-21655 is exploited, it can lead to excessive disk usage and bandwidth consumption, impacting the performance of the Discourse instance.

Which versions of Discourse are affected by CVE-2024-21655?

CVE-2024-21655 affects Discourse versions prior to 3.1.4 and beta versions up to 3.2.0-beta3.

Is there a way to mitigate CVE-2024-21655 without updating?

There are no specific mitigations for CVE-2024-21655 aside from updating to an unaffected version.

Vulnerability/
CVE-2024-21655

medium

4.3

CWE

400 770

EPSS

0.045%

12/1/2024

25/1/2024

CVE-2024-21655: Insufficient control of custom field value sizes

First published: Fri Jan 12 2024(Updated: )

Discourse is a platform for community discussion. For fields that are client editable, limits on sizes are not imposed. This allows a malicious actor to cause a Discourse instance to use excessive disk space and also often excessive bandwidth. The issue is patched 3.1.4 and 3.2.0.beta4.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Discourse	<3.1.4
Discourse	=3.2.0-beta1
Discourse	=3.2.0-beta2
Discourse	=3.2.0-beta3

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Reference Links

https://github.com/discourse/discourse/security/advisories/GHSA-m5fc-94mm-38fx

Frequently Asked Questions

What is the severity of CVE-2024-21655?
CVE-2024-21655 has been classified as a medium severity vulnerability due to its potential to exhaust disk space and bandwidth.
How do I fix CVE-2024-21655?
To fix CVE-2024-21655, update your Discourse instance to version 3.1.4 or later, or 3.2.0-beta4 or later.
What are the consequences of CVE-2024-21655 being exploited?
If CVE-2024-21655 is exploited, it can lead to excessive disk usage and bandwidth consumption, impacting the performance of the Discourse instance.
Which versions of Discourse are affected by CVE-2024-21655?
CVE-2024-21655 affects Discourse versions prior to 3.1.4 and beta versions up to 3.2.0-beta3.
Is there a way to mitigate CVE-2024-21655 without updating?
There are no specific mitigations for CVE-2024-21655 aside from updating to an unaffected version.

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