CVE-2026-5139

—

CVSS 3.1

5.4 medium

EPSS

<1%p21

Published

Jun 22, 2026 (Jun 22, 2026)

Modified

Sep 15, 2026

Description

Mattermost versions 11.7.x }} slash command.. Mattermost Advisory ID: MMSA-2026-00644

Vendors: mattermost
Products: mattermost server
Ecosystems: go
Weakness: CWE-862
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
GHSA: GHSA-2g8v-grq3-hq2g (medium)

NVD CVE.org GitHub PoCs EPSS (0.3%)

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