What is CVE-2022-1982?

CVE-2022-1982 is a medium-severity vulnerability in Mattermost, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2022-06-02.

How severe is CVE-2022-1982?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Mattermost

CVE-2022-1982

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.

Vulnerability class: DoS (Denial of Service)

Published 2022-06-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.009 (58.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Mattermost — versions 6.5.x 6.5.0, 6.6.x 6.6.0, 5.x
Mattermost Server — versions 6.5.0, 6.6.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

mattermost.com/security-updates/ (Vendor Advisory)

Frequently asked questions

What is CVE-2022-1982?: CVE-2022-1982 is a medium-severity vulnerability in Mattermost, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2022-06-02.
How severe is CVE-2022-1982?: Medium severity. CVSS v3 base score is 4.3 out of 10.