Vulnerability DatabaseCVE-2026-35388
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CVE-2026-35388
Published:April 02, 2026
Updated:April 09, 2026
OpenSSH before 10.3 omits connection multiplexing confirmation for proxy-mode multiplexing sessions.
Affected Packages
https://github.com/openssh/openssh-portable.git (GITHUB):
Affected version(s) >=V_1_2_PRE3 <V_10_3_P1
Fix Suggestion:
Update to version V_10_3_P1
Related Resources (3)
https://www.openssh.org/releasenotes.html#10.3p1
https://www.openwall.com/lists/oss-security/2026/04/02/3
https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
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CVSS v4
Base Score:
2
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.5
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Unprotected Alternate Channel
CWE-420
EPSS
Base Score:
0.01