CVE-2026-42246 | Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4.
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4.
- 🔗 github.com/ruby/net-imap/security/advisories/GHSA-vc…
- 🔗 github.com/ruby/net-imap/commit/0ede4c40b1523dfeaf95…
- 🔗 github.com/ruby/net-imap/commit/24a4e770b43230286a05…
- 🔗 github.com/ruby/net-imap/commit/97e2488fb5401a1783bd…
- 🔗 github.com/ruby/net-imap/commit/f79d35bf5833f186e810…
- 🔗 github.com/ruby/net-imap/releases/tag/v0.3.10
- 🔗 github.com/ruby/net-imap/releases/tag/v0.4.24
- 🔗 github.com/ruby/net-imap/releases/tag/v0.5.14
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CVE-2026-42246 | Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4.
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAP#starttls to return "successfully", without star