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Servers and applications

CVE-2026-123158

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.

Severity
High 8.1
Published
5 Nov 2026
Last changed
5 Nov 2026
Added to UpHeron
5 Nov 2026
Fixed in
10.6p2
Sources
CVE Program

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cna:openbsd|openssh
  • Every version before 10.6p2

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-123158