High · published September 6, 2026
A flaw in the libcurl SASL negotiation for LDAP authentication allows an
incomplete handshake sequence to be misinterpreted as a successful
cryptographic verification. An attacker executing a Man-in-the-Middle (MITM)
attack can inject a premature or shortcut response that bypasses complete peer
validation.
| Product | Versions | Fixed in |
|---|---|---|
| haxx/curl | ≥ 7.82.0, < 8.22.0 | 8.22.0 |