What’s Vulnerable › Vulnerabilities
CVE-2022-1982: A crafted SVG attachment can crash a Mattermost server
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-06-02 · updated 2026-06-17
- Weakness: CWE-400
Description
Uncontrolled resource consumption in Mattermost version 6.6.0 and earlier allows an authenticated attacker to crash the server via a crafted SVG attachment on a post.
Affected products
- Mattermost: from 5.0.0 before 6.3.8; from 6.4.0 before 6.4.3; 6.5.0, 6.6.0 — fixed in 6.3.8, 6.4.3
How to fix
Upgrade to a fixed version: Mattermost 6.3.8, 6.4.3. Check the vendor advisory for mitigations.
References
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