// For flags

CVE-2024-24988

Excessive resource consumption when sending long emoji names in user custom status

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

Mattermost no logra validar adecuadamente la longitud del valor emoji en el estado de usuario personalizado, lo que permite a un atacante enviar varias veces una cadena muy larga como valor emoji, lo que provoca un alto consumo de recursos y posiblemente fallar el servidor.

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.

*Credits: Gian Klug (coderion)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-26 CVE Reserved
  • 2024-02-29 CVE Published
  • 2024-08-01 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
References (1)
URL Tag Source
https://mattermost.com/security-updates
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 <= 9.2.4
Search vendor "Mattermost" for product "Mattermost" and version " <= 9.2.4"
en
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 <= 8.1.8
Search vendor "Mattermost" for product "Mattermost" and version " <= 8.1.8"
en
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 <= 9.3.0
Search vendor "Mattermost" for product "Mattermost" and version " <= 9.3.0"
en
Affected