CVE-2026-35388CWE-420

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

Low · published April 2, 2026

CVSS v3.1
2.5
EPSS
0%
Percentile
12.8
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
2.5 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00227 · 12.8th percentile
Weakness
CWE-420 · Unprotected Alternate Channel
Published
2026-04-02T16:57Z
EPSS history
Timeline
  • 02 APR 16:57Z
    OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions
    cvelistv5