CVE-2026-59999

Summary

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

Affected Software

Weaknesses

• CWE-348: CWE-348 Use of Less Trusted Source

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

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

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