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GHSA-3439-VQGJ-2GCF Mattermost allows attackers to manipulate administrator terminals via crafted messages containing ANSI and OSC escape sequences

🗓️ 26 Mar 2026 18:31:42Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 10 Views

Mattermost administrator terminals can be manipulated via crafted ANSI and OSC sequences in posts.

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