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, SM…
Medium CVSS 5.9
Summary
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.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://curl.se/docs/CVE-2026-4873.html Patch
- https://curl.se/docs/CVE-2026-4873.json Vendor Advisory
- https://hackerone.com/reports/3621851 Exploit
- http://www.openwall.com/lists/oss-security/2026/04/29/7 Mailing List
Timeline
- nvd_ingest NVD