What is CVE-2026-106589?

CVE-2026-106589 is a low-severity vulnerability in OpenBSD OpenSSH, classified under CWE-272. CVSS score: 2.9/10. Published 2026-10-06.

How severe is CVE-2026-106589?

Low severity. CVSS v3 base score is 2.9 out of 10.

Vulnerability in OpenBSD OpenSSH

CVE-2026-106589

In sshd in OpenSSH through 10.6, in certain environments such as QNX 6 and SCO OpenServer 5, sshd-session can unexpectedly have root privileges. This is related to the GatewayPorts and StreamLocalForwarding configuration options, and lack of support for file-descriptor passing and unprivileged allocation of PTY devices.

Published 2026-10-06 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

OpenBSD OpenSSH

Weakness classification (CWE)

CWE-272

References

www.openssh.org/releasenotes.html

Frequently asked questions

What is CVE-2026-106589?: CVE-2026-106589 is a low-severity vulnerability in OpenBSD OpenSSH, classified under CWE-272. CVSS score: 2.9/10. Published 2026-10-06.
How severe is CVE-2026-106589?: Low severity. CVSS v3 base score is 2.9 out of 10.