{"id":"CVE-2026-110926","title":"A flaw was found in OpenSSH","summary":"A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-203"],"vendor":"Red Hat","product":"openssh","affected":["openssh","openssh","openssh","openssh","openssh","openshell (all versions)","openssh (all versions)","openshift/ose-rhel-coreos-8","openshift/ose-rhel-coreos-9"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T06:17:01.440","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110926","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-110926","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553035","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-15T05:52:45.969Z","slug":"CVE-2026-110926","body":"## Overview\n\nA flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}