CVE-2023-44388

Name: CVE-2023-44388
Creator: NVD / NIST
Published: 2023-10-16T22:15:12.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-44388 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Discourse is an open source platform for community discussion. A malicious request can cause production log files to quickly fill up and thus result in the server running out of disk space. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

Discourse is an open source platform for community discussion. A malicious request can cause production log files to quickly fill up and thus result in the server running out of disk space. This problem has been patched in the 3.1.1 stable and 3.2.0.beta2 versions of Discourse. It is possible to temporarily work around this problem by reducing the `client_max_body_size nginx directive`. `client_max_body_size` will limit the size of uploads that can be uploaded directly to the server.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.53%

40.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions	Update
Discourse	Discourse	<= 3.1.1	—
Discourse	Discourse	3.2.0	Beta1

References

http://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_sizeThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-89h3-g746-xmwqVendor Advisory
http://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_sizeThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-89h3-g746-xmwqVendor Advisory

Timeline

Published: Oct 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-44388?

How severe is CVE-2023-44388?

CVE-2023-44388 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-44388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-44388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST