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CVE-2024-1402

MEDIUM
Published 2024-02-09T15:09:18.157Z
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CVSS Score

V3.1
4.3
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.258
Higher than 25.8% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
LOW

Description

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post. 

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Mattermost

Mattermost

Affected Versions:

0 0 0 9.3.0 9.2.4 9.1.5 8.1.8

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed MODERATE

Mattermost vulnerable to denial of service via large number of emoji reactions

GHSA-32h7-7j94-8fc2

Advisory Details

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post. Fetching posts with huge amounts of reactions results in Uncontrolled Resource Consumption.

Affected Packages

Go github.com/mattermost/mattermost/server/v8
ECOSYSTEM: ≥0 <8.1.8
Go github.com/mattermost/mattermost/server/v8
ECOSYSTEM: ≥9.2.0 <9.2.4
Go github.com/mattermost/mattermost/server/v8
ECOSYSTEM: ≥9.1.0 <9.1.5

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-1402
WEB https://github.com/mattermost/mattermost/commit/64cb0ca8af2dbda1afcddd1604460591a4799b81
WEB https://github.com/mattermost/mattermost/commit/6d2440de9fd774b67e65e3aac4ab8b6ef9aba2d8
WEB https://github.com/mattermost/mattermost/commit/81190e2da128a6985914ea7023a69ac400513fc4
PACKAGE https://github.com/mattermost/mattermost
WEB https://mattermost.com/security-updates

Advisory provided by GitHub Security Advisory Database. Published: February 9, 2024, Modified: February 19, 2025

References

https://mattermost.com/security-updates
Published: 2024-02-09T15:09:18.157Z
Last Modified: 2024-08-01T18:40:20.579Z
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