{"id":"CVE-2026-129120","summary":"C-Kermit 11.0.506 before 11.1.515 RECEIVE CONFIRM Bypass via Recursive GET","details":"C-Kermit 11.0.506 before 11.1.515 contains a RECEIVE CONFIRM bypass vulnerability that allows malicious Kermit servers to write unrequested files without prompting by abusing recursive GET root computation in ckcfns.c. Attackers can send files such as .ssh/authorized_keys or shell startup files under the current directory, which rq_under_root() accepts silently, enabling persistent access or code execution.","aliases":["CVE-2026-129119","CVE-2026-129121","GHSA-vhrv-7jrq-95qj"],"modified":"2026-11-14T02:56:06.098150016Z","published":"2026-11-13T16:23:45.983Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129120.json","unresolved_ranges":[{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"11.0.506"},{"fixed":"11.1.515"}],"source":"AFFECTED_FIELD"}]},{"extracted_events":[{"source":"DESCRIPTION","range":[{"introduced":"11.0.506"},{"fixed":"11.1.515"}]}]}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/129xxx/CVE-2026-129120.json"},{"type":"ARTICLE","url":"https://github.com/OpenKermit/ckermit/blob/v11.0.514/ckcfns.c#L3452"},{"type":"FIX","url":"https://github.com/OpenKermit/ckermit/commit/49e04a5ccfa08706b1d7e51dce4059f4adce50f3"},{"type":"ADVISORY","url":"https://github.com/OpenKermit/ckermit/releases/tag/v11.1.515"},{"type":"ADVISORY","url":"https://github.com/OpenKermit/ckermit/security/advisories/GHSA-vhrv-7jrq-95qj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129120"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/c-kermit-11.0.506-before-11.1.515-receive-confirm-bypass-via-recursive-get"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openkermit/ckermit","events":[{"introduced":"0"},{"fixed":"49e04a5ccfa08706b1d7e51dce4059f4adce50f3"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"49e04a5ccfa08706b1d7e51dce4059f4adce50f3"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v11.0.514","v11.0.513","v11.0.512","v11.0.511","v11.0.510","v11.0.509","v11.0.508","v11.0.507","v11.0.506","v11.0.505","v11.0.504","v11.0.503","v11.0.502","v11.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-129120.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}