Missing Authentication for Critical Function Affecting openssh-keycat package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-CENTOS8-OPENSSHKEYCAT-15944725
  • published8 Apr 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

NewCVE-2026-35388  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 openssh-keycat.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh-keycat package and not the openssh-keycat package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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

CVSS Base Scores

version 3.1