CVE-2025-9078
15.09.2025, 10:15
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashingEnginsight
| Vendor | Product | Version | 
|---|---|---|
| mattermost | mattermost_server | 9.11.0 ≤ 𝑥 < 9.11.18 | 
| mattermost | mattermost_server | 10.5.0 ≤ 𝑥 < 10.5.9 | 
| mattermost | mattermost_server | 10.8.0 ≤ 𝑥 < 10.8.4 | 
| mattermost | mattermost_server | 10.9.0 ≤ 𝑥 < 10.9.4 | 
| mattermost | mattermost_server | 10.10.0 ≤ 𝑥 < 10.10.2 | 
𝑥
= Vulnerable software versions
References