Vulnerability record · CVE-2026-59999 · published 8 July 2026

CVE-2026-59999: Openbsd openssh vulnerability

Openbsd · Openssh

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

7.5 CVSS 3.1 High EPSS 0.16% · top 95.6% CWE-348 · CWE-348

7.5CVSS 3.1 base score

0.16%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References

9 Jul 2026Last modified by NVD

Description

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Openssh Openbsd

References

Link	Tags
https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2	Release Notes
https://www.openssh.org/releasenotes.html#10.4p1	Release Notes
https://www.openwall.com/lists/oss-security/2026/07/06/5	Mailing ListRelease Notes

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-59999), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.