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CVE-2025-14822
CVE-2025-14822
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
Published Jan 17, 2026
https://github.com/advisories/GHSA-9r42-rhw3-2222
CVSS Score
Medium
6.5
Components Impacted
Components Impacted
Security Details
Security Details
Sonatype Research
Sonatype Research
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CVE-2025-14822 | Components Impacted | Sonatype Guide | Sonatype Guide