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BELL-CVE-2026-59998

Affected: Alpaquita:23: openssh, Alpaquita:25: openssh, Alpaquita:stream: openssh, BellSoft Hardened Containers:23: openssh, BellSoft Hardened Containers:25: openssh, BellSoft Hardened Containers:stream: openssh

EUVD-2026-333905

fkie_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.

GHSA-3j2g-cqmq-cjw9

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

msrc_CVE-2026-59998 — sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if t…

msrc_CVE-2026-59998

openSUSE-SU-2026:21477-1 — Security update for openssh

Security update for openssh

RHSA-2026:37382 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

openssh: OpenSSH: sftp client allows attacker to control downloaded file location openssh: OpenSSH: `scp` file misplacement vulnerability during remote copy openssh: OpenSSH: SFTP security bypass due to command-line argument parsing flaw openssh: OpenSSH: Undocumented GSSAPIStrictAcceptorCheck behavior impacts security in Windows Active Directory openssh: OpenSSH sshd: Security bypass due to incorrect handling of forwarding and tunneling options openssh: OpenSSH: Denial of Service via excessive GSSAPI authentication attempts openssh: OpenSSH: Brute-force attacks facilitated due to insufficient authentication delay openssh: OpenSSH: Use-after-free vulnerability during host key re-exchange on the client side

SUSE-SU-2026:22978-1 — Security update for openssh

Security update for openssh

UBUNTU-CVE-2026-59998

Affected: Ubuntu:Pro:14.04:LTS: openssh, Ubuntu:Pro:16.04:LTS: openssh, Ubuntu:Pro:FIPS:16.04:LTS: openssh, Ubuntu:Pro:18.04:LTS: openssh, Ubuntu:18.04:LTS: openssh-ssh1, Ubuntu:Pro:FIPS-updates:18.04:LTS: openssh, Ubuntu:Pro:FIPS:18.04:LTS: openssh, Ubuntu:Pro:20.04:LTS: openssh, Ubuntu:20.04:LTS: openssh-ssh1, Ubuntu:Pro:FIPS-updates:20.04:LTS: openssh and 12 more

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

WID-SEC-W-2026-2221 — OpenSSH: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in OpenSSH ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.