This page lists publicly disclosed CVE vulnerabilities affecting openbsd openssh (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2026-60002 | ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.) | [email protected] | 7.7 | 0.25% | 2026-07-07 | 2026-07-09 |
| CVE-2026-60001 | sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay. | [email protected] | 6.5 | 0.27% | 2026-07-07 | 2026-07-09 |
| CVE-2026-60000 | sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication. | [email protected] | 3.7 | 0.41% | 2026-07-07 | 2026-07-09 |
| CVE-2026-59999 | In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not. | [email protected] | 5.9 | 0.13% | 2026-07-07 | 2026-07-09 |
| CVE-2026-59998 | sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory. | [email protected] | 4.8 | 0.18% | 2026-07-07 | 2026-07-09 |
| CVE-2026-59997 | internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection. | [email protected] | 4.2 | 0.16% | 2026-07-07 | 2026-07-09 |
| CVE-2026-59996 | scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations. | [email protected] | 4.2 | 0.20% | 2026-07-07 | 2026-07-09 |
| CVE-2026-59995 | sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server. | [email protected] | 4.2 | 0.20% | 2026-07-07 | 2026-07-09 |
| CVE-2026-55655 | A flaw was found in OpenSSH. A local unprivileged attacker on a Linux client host can hijack client-side X11 forwarding connections. This is possible by pre-binding the preferred abstract X socket name when X11 forwarding is enabled and a local UNIX-domain X socket is used. A successful attack can compromise the confidentiality of forwarded X11 traffic, including sensitive window contents and input, and may allow some manipulation of the forwarded session. | [email protected] | 5.0 | 0.09% | 2026-06-23 | 2026-07-08 |
| CVE-2026-55654 | A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the ava | [email protected] | 3.7 | 0.37% | 2026-06-23 | 2026-07-08 |
| CVE-2026-55653 | A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS). | [email protected] | 4.3 | 0.20% | 2026-06-23 | 2026-07-08 |
| CVE-2026-35414 | OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters. | [email protected] | 4.2 | 0.18% | 2026-04-02 | 2026-06-17 |
| CVE-2026-35388 | OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions. | [email protected] | 2.5 | 0.13% | 2026-04-02 | 2026-06-17 |
| CVE-2026-35387 | OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms. | [email protected] | 3.1 | 0.24% | 2026-04-02 | 2026-06-17 |
| CVE-2026-35386 | In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config. | [email protected] | 3.6 | 0.25% | 2026-04-02 | 2026-07-07 |
| CVE-2026-35385 | In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O (legacy scp protocol) and without -p (preserve mode). | [email protected] | 7.5 | 0.42% | 2026-04-02 | 2026-07-14 |
| CVE-2026-3497 | Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program with | [email protected] | 6.9 | 2.18% | 2026-03-12 | 2026-07-14 |
| CVE-2025-61985 | ssh in OpenSSH before 10.1 allows the '\0' character in an ssh:// URI, potentially leading to code execution when a ProxyCommand is used. | [email protected] | 3.6 | 0.06% | 2025-10-06 | 2026-07-14 |
| CVE-2025-61984 | ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.) | [email protected] | 3.6 | 0.28% | 2025-10-06 | 2026-07-14 |
| CVE-2025-32728 | In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding. | [email protected] | 4.3 | 0.16% | 2025-04-09 | 2026-06-17 |