CVE-2026-44467

The CVE describes a vulnerability in Claude Desktop (SSH remote development feature) where, from versions 1.2581.0 up to before 1.4304.0, host key verification was bypassed: the system only checked that a hostname existed in ~/.ssh/known_hosts, not that the presented host key matched the stored k...

CVE-2026-44467 Claude Desktop: SSH Host Key Verification Bypass Allows Man-in-the-Middle Attack on Remote Sessions

The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. From 1.2581.0 to before 1.4304.0, Claude Desktop's SSH remote development feature verified only whether a hostname existed in /.ssh/knownhosts without comparing the server's...

JLSEC-2026-430 When doing SSH-based transfers using either SCP or SFTP, and setting the `known_hosts` file, libcurl...

When doing SSH-based transfers using either SCP or SFTP, and setting the knownhosts file, libcurl could still mistakenly accept connecting to hosts not present in the specified file if they were added as recognized in the libssh global knownhosts file...

GHSA-P4H8-56QP-HPGV SSH/SCP option injection allowing local RCE in @aiondadotcom/mcp-ssh

Impact A crafted hostAlias argument such as -oProxyCommand=... was passed to ssh/scp without an argument terminator. SSH interprets arguments starting with - as options regardless of position, so the option-injection caused SSH to execute the attacker-supplied ProxyCommand locally on the machine...

curl: # SCURLOPT_SSH_KNOWNHOSTS and host fingerprint pins are silently bypassed when an SSH connection is reused from the connection pool

Product libcurl all versions, all platforms, compiled with USESSH Protocols affected: sftp://, scp:// --- Summary libcurl's connection pool reuse logic for SSH-based protocols SFTP, SCP contains a security gap that allows a transfer's server-verification policy to be completely ignored. When an...

curl: Missing server identity policy enforcement in SSH connection reuse allows host key verification bypass via pool poisoning

Missing server identity policy enforcement in SSH connection reuse allows host key verification bypass via pool poisoning --- Summary sshconfigmatches in lib/url.c decides whether an existing SSH connection can be reused by a new transfer handle. It checks client key paths rsa, rsapub but never...

EUVD-2026-16332

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967 Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967 Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967 Libssh: libssh: denial of service via inefficient regular expression processing

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2026-0967

A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...

CVE-2025-67035

An issue was discovered in Lantronix EDS5000 2.1.0.0R3. The SSH Client and SSH Server pages are affected by multiple OS injection vulnerabilities due to missing sanitization of input parameters. An attacker can inject arbitrary commands in delete actions of various objects, such as server keys,...

EulerOS Virtualization 2.12.1 : curl (EulerOS-SA-2026-1421)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl,changing TLS options in one thread would inadvertently change th...

EulerOS Virtualization 2.10.1 : curl (EulerOS-SA-2026-1532)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that...

EulerOS 2.0 SP10 : curl (EulerOS-SA-2026-1305)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP,...

EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-1386)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally an...

EulerOS Virtualization 2.12.0 : curl (EulerOS-SA-2026-1478)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl,changing TLS options in one thread would inadvertently change th...

CLSA-2026-1773316266 Fix CVE(s): CVE-2025-14524, CVE-2025-15079, CVE-2025-15224

SECURITY UPDATE: OAuth2 bearer token leak on cross-protocol redirect - debian/patches/CVE-2025-14524.patch: do not use bearer when following redirect unless allowauthtootherhosts is set - CVE-2025-14524 SECURITY UPDATE: libssh global knownhosts override -...

CLSA-2026-1773316090 Fix CVE(s): CVE-2025-14524, CVE-2025-15079

SECURITY UPDATE: OAuth2 bearer token leak on cross-protocol redirect - debian/patches/CVE-2025-14524.patch: do not use bearer when following redirect unless allowauthtootherhosts is set - CVE-2025-14524 SECURITY UPDATE: libssh global knownhosts override - debian/patches/CVE-2025-15079.patch: set...