CVE-2026-3108

HIGH

8.0

Description

Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to sanitize user-controlled post content in the mmctl commands terminal output which allows attackers to manipulate administrator terminals via crafted messages containing ANSI and OSC escape sequences that enable screen manipulation, fake prompts, and clipboard hijacking.. Mattermost Advisory ID: MMSA-2026-00599

Details CVE

Score CVSS v3.18.0

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie3/26/2026

Derniere modification3/30/2026

Sourcenvd

Observations honeypot0

Produits affectes

mattermost:mattermost_server

Faiblesses (CWE)

CWE-150

References

https://mattermost.com/security-updates(responsibledisclosure@mattermost.com)

Correlations IOC

Aucune correlation enregistree

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