{"id":"CVE-2026-123158","title":"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)","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 configurat…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-394"],"vendor":"OpenBSD","product":"OpenSSH","affected":["OpenSSH < 10.6p2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-11-05T17:12:53.200399Z"},"exploitAvailable":true,"published":"2026-11-05","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:06:39.062Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123158","references":[{"url":"https://www.openssh.org/releasenotes.html#10.6p2"},{"url":"https://github.com/openssh/openssh-portable/commit/4353fdc43ef646c43a8dda7025cc1a898caf1482"},{"url":"https://news.ycombinator.com/item?id=50377976"},{"url":"https://news.ycombinator.com/item?id=50378228"},{"url":"https://marc.info/?l=openssh-unix-dev&m=179388064263131&w=2"},{"url":"https://hachyderm.io/@damienmiller/117563026759098135"},{"url":"https://github.com/predkambrij/sshhole-repro"},{"url":"https://github.com/leonjza/sshhole-lab"}],"tags":["cve.org","exploit-available"],"ingestedAt":"2026-11-05T22:38:31.983Z","slug":"CVE-2026-123158","body":"## Overview\n\nsshd 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.\n\n## Affected\n\n- `OpenSSH < 10.6p2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}