{"id":"CVE-2018-20133","aliases":["EUVD-2018-0147","GHSA-8r8j-xvfj-36f9","PYSEC-2018-103"],"status":"published","title":"Code injection in ymlref","description":"ymlref allows code injection.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01833,"percentile":0.79051,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2018-12-17T18:00:00Z","modified":"2026-06-17T01:52:19Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"ymlref","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"ymlref","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.1.1"}]}],"versions":["0.1.0","0.1.1"]},{"source":"osv","ecosystem":"PyPI","package":"ymlref","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0","0.1.1"]}],"products":[{"vendor":"ymlref_project","product":"ymlref"}],"references":[{"url":"https://github.com/dexter2206/ymlref/issues/2","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20133","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/ymlref/PYSEC-2018-103.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8r8j-xvfj-36f9","tags":["advisory"]},{"url":"https://github.com/dexter2206/ymlref","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-20133","description":"ymlref allows code injection.","status":"published","published":"2018-12-17T18:00:00Z","modified":"2024-08-05T11:51:19.165Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-0147","description":"ymlref allows code injection.","status":"published","published":"2018-12-17T18:00:00Z","modified":"2024-08-05T11:51:19Z","updated_at":"2026-11-03T02:39:31.9745Z"}],"ghsa":[{"id":"GHSA-8r8j-xvfj-36f9","title":"Code injection in ymlref","description":"ymlref is a library that allows to load Yaml documents and resolve JSON-pointer references inside them. ymlref versions up to 0.1.1 allow code injection.","status":"published","published":"2018-12-19T19:25:14Z","modified":"2024-11-19T18:07:20Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:38:21.777721Z"}],"nvd":[{"id":"CVE-2018-20133","description":"ymlref allows code injection.","status":"published","published":"2018-12-17T19:29:03.017Z","modified":"2026-06-17T01:52:19.36Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:04:50.99633Z"}],"osv":[{"id":"GHSA-8r8j-xvfj-36f9","title":"Code injection in ymlref","description":"ymlref is a library that allows to load Yaml documents and resolve JSON-pointer references inside them. ymlref versions up to 0.1.1 allow code injection.","status":"published","published":"2018-12-19T19:25:14Z","modified":"2024-11-19T18:24:40.312866Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:46:42.78452Z"},{"id":"PYSEC-2018-103","description":"ymlref allows code injection.","status":"published","published":"2018-12-17T19:29:00Z","modified":"2023-11-08T04:00:11.089137Z","updated_at":"2026-11-02T15:52:51.645172Z"}]}}