CVE-2025-14822

DoS from quadratic complexity in model.ParseHashtags

CVSS 3.1 LOWEPSS 0.3%CWE-407

Mattermost versions 10.11.x <= 10.11.8 fail to validate input size before processing hashtags which allows an authenticated attacker to exhaust CPU resources via a single HTTP request containing a post with thousands space-separated tokens

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

Productos afectados

Mattermost · Mattermost

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Referencias

https://mattermost.com/security-updates