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CVE-2026-4873

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CVE-2026-4873

Published: May 13, 2026

Modified: May 13, 2026

PUBLISHED

Description

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.

VendorProductVersions

curl

curl

affected
8.19.0 - <= 8.19.0
affected
8.18.0 - <= 8.18.0
affected
8.17.0 - <= 8.17.0
affected
8.16.0 - <= 8.16.0
affected
8.15.0 - <= 8.15.0

+127 more versions

References

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