CVE-2026-86348

MediumCVSS 4.3/10Last modified Oct 14, 2026

Description

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

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-704

Affected software

No affected versions have been published.

Timeline

Published: Sep 14, 2026
Last modified: Oct 14, 2026
NVD status: Analyzed

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