CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2022-3257
Medium (6.5) in mattermost mattermost server. EPSS 1.3% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost-server/v6 7.2.0.
Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.
Severity
- EPSS
- 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-434, CWE-400
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m7w4-q5vg-5xfp | Go | github.com/mattermost/mattermost-server/v6 | >=7.1.0 <7.2.0 | 7.2.0 |