PT-2026-91238
CVE-2026-86348
·
Published
2026-09-14
·
Updated
2026-09-14
Description by
CVSS 3.1
4.3
MediumMetricsAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Name of the Vulnerable Software and Affected Versions
Mattermost versions prior to 11.9
Description
The MS Calendar plugin fails to recover from handler panics. This allows an authenticated user to crash the plugin process by sending a post-action request containing an unexpected field type.
Recommendations
Update to version 11.9 or later.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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