CVE-2026-35388: exploitation status and patch state

CVE-2026-35388 · CVSS 2.5 LOW · EPSS <1% · patch available

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

Is CVE-2026-35388 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at <1%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• CBL-Mariner Releases

What PlainSec published about CVE-2026-35388

• Debian 13.5 Refreshes Install Media, Not Your Live Fleet (2026-05-18)

Primary sources

• NVD record

What this record does not say

• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.