CVE-2026-9547

When a libcurl-based application performs transfers via `SCP://` or `SFTP://` and utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for that host in the `known_hosts` file. Instead of rejecting the mismatch, the callback mechanism fails to properly enforce the restriction, allowing the connection to succeed without warning and risking a potential man-in-the-middle attack.

• curl.sehttps://curl.se/docs/CVE-2026-9547.html
• curl.sehttps://curl.se/docs/CVE-2026-9547.json
• hackerone.comhttps://hackerone.com/reports/3751712
• hackerone.comhttps://hackerone.com/reports/3751712

Sin CVEs relacionados por CWE o producto.