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...

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...

CVE-2025-14822 DoS from quadratic complexity in model.ParseHashtags

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...

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...

CVE-2025-14822: Inefficient Algorithmic Complexity

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...

PT-2026-3241

Name of the Vulnerable Software and Affected Versions Mattermost versions 10.11.0 through 10.11.8 Description Mattermost versions 10.11.x up to and including 10.11.8 do not properly validate the size of input before processing hashtags. This allows an authenticated attacker to consume excessive C...