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GO-2026-5067 Mattermost allows attackers to manipulate administrator terminals via crafted messages containing ANSI and OSC escape sequences in github.com/mattermost/mattermost-server

🗓️ 25 Jun 2026 18:26:48Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

GO-2026-5067 allows attackers to manipulate admin terminals via crafted messages with escape sequences in the Mattermost server library.

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25 Jun 2026 18:45Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18 - 8.8
EPSS0.00268
SSVC
5