Bug 2497942 (CVE-2026-59999) - CVE-2026-59999 openssh: OpenSSH sshd: Security bypass due to incorrect handling of forwarding and tunneling options
Summary: CVE-2026-59999 openssh: OpenSSH sshd: Security bypass due to incorrect handli...
Keywords:
Status: NEW
Alias: CVE-2026-59999
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2513851
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 01:02 UTC by OSIDB Bzimport
Modified: 2026-10-12 02:41 UTC (History)
21 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:69129 0 None None None 2026-09-21 06:24:48 UTC
Red Hat Product Errata RHSA-2026:69130 0 None None None 2026-09-21 13:52:04 UTC
Red Hat Product Errata RHSA-2026:69266 0 None None None 2026-09-21 12:33:54 UTC
Red Hat Product Errata RHSA-2026:76748 0 None None None 2026-10-06 14:07:57 UTC
Red Hat Product Errata RHSA-2026:76993 0 None None None 2026-10-07 01:09:57 UTC
Red Hat Product Errata RHSA-2026:80513 0 None None None 2026-10-12 02:41:57 UTC

Description OSIDB Bzimport 2026-07-08 01:02:18 UTC 
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
Comment 3 Jon Orris 2026-09-21 06:24:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:69129 https://access.redhat.com/errata/RHSA-2026:69129
Comment 4 Jon Orris 2026-09-21 12:33:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:69266 https://access.redhat.com/errata/RHSA-2026:69266
Comment 5 Jon Orris 2026-09-21 13:52:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:69130 https://access.redhat.com/errata/RHSA-2026:69130
Comment 8 Jon Orris 2026-10-06 14:07:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:76748 https://access.redhat.com/errata/RHSA-2026:76748
Comment 9 Jon Orris 2026-10-07 01:09:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:76993 https://access.redhat.com/errata/RHSA-2026:76993
Comment 10 Jon Orris 2026-10-12 02:41:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:80513 https://access.redhat.com/errata/RHSA-2026:80513
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