{"id":"CVE-2025-15079","state":"PUBLISHED","title":"libssh global known_hosts override","description":"When doing SSH-based transfers using either SCP or SFTP, and setting the\nknown_hosts file, libcurl could still mistakenly accept connecting to hosts\n*not present* in the specified file if they were added as recognized in the\nlibssh *global* known_hosts file.","publishedAt":"2026-01-08T10:08:13.410Z","updatedAt":"2026-09-15T06:02:32.246Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"curl","products":["curl 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Validation of Certificate with Host Mismatch","type":"CWE"}]}],"providerMetadata":{"shortName":"curl","orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","dateUpdated":"2026-09-15T06:02:32.246Z"},"x_osv":{"schema_version":"1.5.0","id":"CURL-CVE-2025-15079","aliases":["CVE-2025-15079"],"summary":"libssh global known_hosts override","modified":"2026-09-07T10:34:51.00Z","database_specific":{"package":"curl","affects":"both","URL":"https://curl.se/docs/CVE-2025-15079.json","www":"https://curl.se/docs/CVE-2025-15079.html","issue":"https://hackerone.com/reports/3477116","CWE":{"id":"CWE-297","desc":"Improper Validation of Certificate with Host Mismatch"},"award":{"amount":"505","currency":"USD"},"last_affected":"8.17.0","severity":"Low"},"published":"2026-01-07T08:00:00.00Z","affected":[{"ranges":[{"type":"SEMVER","events":[{"introduced":"7.58.0"},{"fixed":"8.14.2"},{"introduced":"8.15.0"},{"fixed":"8.16.1"},{"introduced":"8.17.0"},{"fixed":"8.18.0"}]},{"type":"GIT","repo":"https://github.com/curl/curl.git","events":[{"introduced":"c92d2e14cfb0db662f958effd2ac86f995cf1b5a"},{"fixed":"adca486c125d9a6d9565b9607a19dce803a8b479"}]}],"versions":["8.17.0","8.16.0","8.15.0","8.14.1","8.14.0","8.13.0","8.12.1","8.12.0","8.11.1","8.11.0","8.10.1","8.10.0","8.9.1","8.9.0","8.8.0","8.7.1","8.7.0","8.6.0","8.5.0","8.4.0","8.3.0","8.2.1","8.2.0","8.1.2","8.1.1","8.1.0","8.0.1","8.0.0","7.88.1","7.88.0","7.87.0","7.86.0","7.85.0","7.84.0","7.83.1","7.83.0","7.82.0","7.81.0","7.80.0","7.79.1","7.79.0","7.78.0","7.77.0","7.76.1","7.76.0","7.75.0","7.74.0","7.73.0","7.72.0","7.71.1","7.71.0","7.70.0","7.69.1","7.69.0","7.68.0","7.67.0","7.66.0","7.65.3","7.65.2","7.65.1","7.65.0","7.64.1","7.64.0","7.63.0","7.62.0","7.61.1","7.61.0","7.60.0","7.59.0","7.58.0"]}],"credits":[{"name":"Harry Sintonen","type":"finder"},{"name":"Daniel Stenberg","type":"remediation developer"}],"details":"When doing SSH-based transfers using either SCP or SFTP, and setting the\nknown_hosts file, libcurl could still mistakenly accept connecting to hosts\n*not present* in the specified file if they were added as recognized in the\nlibssh *global* known_hosts file."},"credits":[{"lang":"en","value":"Harry Sintonen","type":"finder"},{"lang":"en","value":"Daniel Stenberg","type":"remediation developer"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/01/07/6"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-01-08T11:06:21.628Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"REQUIRED","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-08T14:45:34.542278Z","id":"CVE-2025-15079","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-297","type":"CWE","lang":"en","description":"CWE-297 Improper Validation of Certificate with Host Mismatch"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-08T14:46:47.042Z"}}]}}}