This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-59998 →

DEBIAN-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...

Original description

The description as published by the source.

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

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 openssh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 openssh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 openssh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.4p1-1"}]}]

References

advisory security-tracker.debian.org