{"schemaVersion":3,"id":"CVE-2026-84637","aliases":["UBUNTU-CVE-2026-84637"],"status":"published","duplicateOf":null,"title":null,"description":"Malicious calendar invitations could use file URI attachments to launch local or network-hosted executables on Windows, bypassing Thunderbird's normal executable attachment protections. With the new invitation display enabled, the attachment could also appear under a misleading filename. 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