CVE-2026-123158
Published:November 05, 2026
Updated:November 10, 2026
sshd in OpenSSH before 10.6p2 on Linux, when musl libc is used without PAM, lacks a workaround for a password authentication bypass (related to misinterpretation of whether a string is intended to be a password hash). For some configurations of accounts, any password between 256 and 1024 characters succeeds. An example of a platform using musl libc without PAM is Alpine Linux.
Affected Packages
https://github.com/openssh/openssh-portable.git (GITHUB):
Affected version(s) >=V_7_3_P1 <V_10_6_P2 || >=V_8_0_P1 <V_10_6_P2 || >=V_9_0_P1 <V_10_6_P2 || >=V_10_0_P1 <V_10_6_P2Fix Suggestion:
Update to version V_10_6_P2openssh (YOCTO):
Affected version(s) >=7.3p1 <10.6p2 || >=8.2p1 <10.6p2Fix Suggestion:
Update to version 10.6p2Related Resources (20)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
ATTACKED
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
HIGH
Weakness Type (CWE)
Unexpected Status Code or Return Value
EPSS
Base Score:
1.01