🛡️ CVE-2022-3257
🟡 CVSS 5.0 — Medium ✅ No Known Exploit CWE-434 NVD
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Medium
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE CWE-434
Public Exploit ✅ No
Source NVD
Published 2022-09-25
Updated 2026-06-08
Modified 2023-12-06
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/mattermost/mattermost-server/v6
mattermost
mattermost-server 7.2.0

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