CVE-2025-9078
Last modified
CVE-2025-9078 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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 hashing. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
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 hashing
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | >= 9.11.0, < 9.11.18 |
| Mattermost | Mattermost Server | >= 10.5.0, < 10.5.9 |
| Mattermost | Mattermost Server | >= 10.8.0, < 10.8.4 |
| Mattermost | Mattermost Server | >= 10.9.0, < 10.9.4 |
| Mattermost | Mattermost Server | >= 10.10.0, < 10.10.2 |
References
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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