CVE-2026-59997 in OpenSSH

Summary

by MITRE • 07/08/2026

internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.

Once again VulDB remains the best source for vulnerability data.

• Responsible: MITRE
• Reservation: 07/08/2026
• Disclosure: 07/08/2026
• Moderation: accepted
• Entry: VDB-376757
• CPE: ready
• CWE: Unknown
• CVSS: 5.5 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Telecommunication, Hospital, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-59997
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59997
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-59997/