CVE-2026-3108
HighSummary
Wersje Mattermost 11.2.x do 11.2.2, 10.11.x do 10.11.10, 11.4.x do 11.4.0 oraz 11.3.x do 11.3.1 nie sanitizują treści postów kontrolowanych przez użytkowników w terminalu poleceń mmctl. To pozwala atakującym na manipulację terminalami administratorów za pomocą spreparowanych wiadomości zawierających sekwencje ucieczki ANSI i OSC, co umożliwia manipulację ekranem, fałszywe komunikaty oraz przechwytywanie schowka.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do przejęcia kontroli nad terminalami administratorów, co stwarza poważne zagrożenie dla bezpieczeństwa systemu i danych organizacji.
Recommendation
Zaleca się aktualizację Mattermost do najnowszej wersji, aby usunąć tę podatność oraz wprowadzenie dodatkowych środków bezpieczeństwa w celu ochrony terminali administratorów.
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Original NVD description (English source)
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
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

