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It was discovered that Ruby's Net::IMAP library did not properly verify that Transport Layer Security (TLS) encryption was started after issuing a STARTTLS command. A remote attacker could possibly use this issue to perform a machine-in-th…

Ubuntu CVE-2026-42246CVE-2026-42257 CVSS 9.8 2026-06-15 17:24 UTC · 2026-06-15 14:24 -03