CVE-2026-86348 (GCVE-0-2026-86348)
Vulnerability from cvelistv5
Published
2026-09-14 13:52
Modified
2026-09-14 19:23
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-704 - Incorrect Type Conversion or Cast
Summary
Mattermost versions <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0 fail to recover from handler panics, which allows an authenticated user to crash the plugin via a post-action request with an unexpected field type.. Mattermost Advisory ID: MMSA-2026-00701
References
Impacted products
Vendor Product Version
Mattermost Mattermost Version: <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0   ≤ <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0
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