Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS0zMmg3LTdqOTQtOGZjMs4AA5MM

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

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. 

Permalink: https://github.com/advisories/GHSA-32h7-7j94-8fc2
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0zMmg3LTdqOTQtOGZjMs4AA5MM
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 3 months ago
Updated: 3 months ago

CVSS Score: 4.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Identifiers: GHSA-32h7-7j94-8fc2, CVE-2024-1402
References:

• https://nvd.nist.gov/vuln/detail/CVE-2024-1402
• https://mattermost.com/security-updates
• https://github.com/mattermost/mattermost/commit/64cb0ca8af2dbda1afcddd1604460591a4799b81
• https://github.com/mattermost/mattermost/commit/6d2440de9fd774b67e65e3aac4ab8b6ef9aba2d8
• https://github.com/mattermost/mattermost/commit/81190e2da128a6985914ea7023a69ac400513fc4
• https://github.com/advisories/GHSA-32h7-7j94-8fc2

Repository: https://github.com/mattermost/mattermost
Blast Radius: 0.0

Affected Packages