CVE Watch23 jul 2026

CVE-2026-4635

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to archive the channel before removing pe

CVSS

6.5

Medio

EPSS

0.2%

KEV

—

Exploit Today

0-100

Publicado: 22 may 2026 · Última mod.: 23 jul 2026 · CWE-362

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-07-062026-08-02

Descripción técnica

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to archive the channel before removing persistent notifications which allows authenticated user to crash the server via timing the creation of persistent notification message between the server deleting existing persistent notifications and archiving the channel.. Mattermost Advisory ID: MMSA-2026-00637

Referencias oficiales

mattermost.comhttps://mattermost.com/security-updates

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