{"id":"CVE-2023-46445","aliases":["GHSA-cfc2-wr2v-gxm5","PYSEC-2023-237"],"url":"https://o3.security/vulnerability/CVE-2023-46445","summary":"AsyncSSH Rogue Extension Negotiation","details":"An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a \"Rogue Extension Negotiation.\"","published":"2023-11-14T00:00:00Z","modified":"2026-08-08T03:48:00.233069768Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"asyncssh","fixedVersion":"2.14.1"}],"fix":null,"references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html"},{"type":"WEB","url":"https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html"},{"type":"WEB","url":"https://www.terrapin-attack.com"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46445.json"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-cfc2-wr2v-gxm5"},{"type":"ADVISORY","url":"https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46445"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231222-0001/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:00.233069768Z"}}