CVE-2026-4873 — connection reuse ignores TLS requirement
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in cl…
Published: 2026-05-13 · CVSS: 5.9 · CVSS 3.1
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7