CVE-2026-106582: OpenBSD OpenSSH

Low severity, CVSS 3.7. EPSS: 0.2% chance of exploitation in the next 30 days.

In sshd and ssh in OpenSSH before 10.6, an LZ77 dictionary coder can be used even though this is contraindicated by the arXiv 2609.07709 "Crossing the Streams" findings.

Affected products

• OpenBSD OpenSSH: before 10.6 (fixed in 10.6)

Published 2026-10-06. Last modified 2026-10-07.