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Unexpected Status Code or Return Value

CVE-2026-123158

High
8.1/10

Summary

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.

  • HIGH
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-394 - Unexpected Status Code or Return Value

The software does not properly check when a function or operation returns a value that is legitimate for the function, but is not expected by the software.

Advisory Timeline

  • Published