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Status published
Medium
CVE-2022-2406
Malicious imports can lead to Denial of Service
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Thanks to Juho Nurminen for contributing to this improvement under the Mattermost responsible disclosure policy.
References
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Affected Vendor
Mattermost
View all reports →Affected Software
Mattermost
Vulnerable Versions:
unspecified, 6.4.x, 6.7.x 6.7.0, 6.5.x, 6.6.x
Timeline
Official Publish:
July 14th, 2022
Last Modified:
December 6th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L