OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Apr 2, 2026 · NIST NVD

   Detected

   OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.

2. Jul 24, 2026 · NIST NVD

   Updated

   OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.

Affected

• cpe openbsd/opensshversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-35388

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-35388

  OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.

  nvd.nist.gov

References

• Third Party Advisory · marc.info
• Release Notes · openssh.org
• Third Party Advisory · openwall.com