Important: curl

Issue Overview: When libcurl uses libssh2 with a hashed knownhosts file, an unrelated initial entry can cause host key validation to report a key mismatch as a missing key to the CURLOPTSSHKEYFUNCTION callback. CVE-2026-87865 Affected Packages: curl Note: This advisory is applicable to Amazon Lin...

curl: curl: Man-in-the-middle attack via SSH host key bypass

A flaw was found in curl. When a libcurl-based application uses SCP:// or SFTP:// for transfers and employs the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This occurs if the server's host key type differs from the one stored in the knownhosts file. The callback...

Curl encryption vulnerability

The curl version 8.22.0 and earlier have an encryption-related vulnerability. This vulnerability arises when libcurl uses libssh2 to process the hash of the knownhosts file. In this case, unrelated initial entries can cause host key verification to falsely report a key mismatch as a key absence...

EulerOS 2.0 SP13 : curl (EulerOS-SA-2026-4038)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : 'Hello friends,', 'CVE-2026-8286: wrong STARTTLS connection reuse LOW', 'CVE-2026-8458: wrong reuse for different services LOW', 'CVE-2026-8924:...

curl: curl: Man-in-the-middle attack via SSH host key bypass

A flaw was found in curl. When a libcurl-based application uses SCP:// or SFTP:// for transfers and employs the CURLOPTSSHKEYFUNCTION callback, it may silently accept an untrusted server. This occurs if the server's host key type differs from the one stored in the knownhosts file. The callback...

CVE-2026-9547

When a libcurl-based application performs transfers via "SCP://" or "SFTP://" and utilizes the "CURLOPTSSHKEYFUNCTION" 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...

CVE-2026-9547: Improper Validation of Certificate with Host Mismatch

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION 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 th...

CVE-2026-9547: Improper Validation of Certificate with Host Mismatch

When a libcurl-based application performs transfers via SCP:// or SFTP:// and utilizes the CURLOPTSSHKEYFUNCTION 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 th...