CVE-2026-6961

HIGH

7.6

CVSS Severity Score

EPSS Score0.0720%

EPSS Percentile4.40th

Published2026年6月12日

Last Modified2026年6月12日

Vulnerability Description

Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 Mattermost fails to sanitize FileInfo.Name received from federated peers during shared channel file sync, which allows an attacker who controls a federated server to write files to arbitrary locations within the target server's filestore via path traversal sequences in the filename field.. Mattermost Advisory ID: MMSA-2026-00661

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://mattermost.com/security-updates

Vulnerability Description

Affected Platforms (CPE)

References & Advisories

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