CVE-2024-24988

Name: CVE-2024-24988
Creator: NVD / NIST
Published: 2024-02-29T08:15:47.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2024-24988 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server. . EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

Mattermost fails to properly validate the length of the emoji value in the custom user status, allowing an attacker to send multiple times a very long string as an emoji value causing high resource consumption and possibly crashing the server.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.68%

47.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Mattermost	Mattermost Server	< 8.1.8
Mattermost	Mattermost Server	>= 9.0.0, < 9.1.5
Mattermost	Mattermost Server	>= 9.2.0, < 9.2.4

References

https://mattermost.com/security-updatesVendor Advisory
https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Feb 29, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-24988?

How severe is CVE-2024-24988?

CVE-2024-24988 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2024-24988?

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-2024-24988?

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

Scan your code now

Source: NVD / NIST