4.3

CVE-2026-86348

MS Calendar plugin: unrecovered handler panics from malformed post-action requests could crash the plugin process

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
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerMattermost
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Produkt Mattermost
Default Statusunaffected
Version <= <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0
Version <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0
Status affected
Version 11.10.0
Status unaffected
Version 11.9.1
Status unaffected
Version 11.8.5
Status unaffected
Version 11.7.8
Status unaffected
Version 10.11.23
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.122
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
responsibledisclosure@mattermost.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-704 Incorrect Type Conversion or Cast

The product does not correctly convert an object, resource, or structure from one type to a different type.

https://mattermost.com/security-updates