CVE-2022-2406

MEDIUM 6.5CVE-2022-2406 · Published 14/07/2022 · updated 17/06/2026

In short

CVE-2022-2406 is a MEDIUM (CVSS 6.5) vulnerability affecting mattermost (mattermost).
Chance of exploitation in the next 30 days (EPSS): 0.88%, higher than 59.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
mattermost mattermost	`= 6.6.0= 6.6.1= 6.7.0≥ 6.4.0, ≤ 6.5.1≤ 6.3.8`	No fix yet

Description

The legacy Slack import feature in Mattermost version 6.7.0 and earlier fails to properly limit the sizes of imported files, which allows an authenticated attacker to crash the server by importing large files via the Slack import REST API.

References

mattermost.com/security-updates · Vendor Advisory

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Package

Affected versions

Patched versions

mattermost

= 6.6.0= 6.6.1= 6.7.0≥ 6.4.0, ≤ 6.5.1≤ 6.3.8

No fix yet

More vulnerabilities in mattermost

See all →