{"id":"CVE-2017-16618","aliases":["EUVD-2017-0082","GHSA-ccmq-qvcp-5mrm","PYSEC-2017-22"],"status":"published","title":"Unsafe deserialization in owlmixin","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","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":0.04473,"percentile":0.91517,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2017-11-08T03:00:00Z","modified":"2026-10-20T10:47:46Z","fixes":[{"ecosystem":"PyPI","package":"owlmixin","fixed_in":["2.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"owlmixin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"owlmixin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}],"versions":["1.0.0","1.0.0b3","1.0.0b4","1.0.0b6","1.0.0b7","1.0.0rc1","1.0.0rc10","1.0.0rc11","1.0.0rc12","1.0.0rc13","1.0.0rc14","1.0.0rc15","1.0.0rc16","1.0.0rc2","1.0.0rc3","1.0.0rc4","1.0.0rc5","1.0.0rc6","1.0.0rc7","1.0.0rc8","1.0.0rc9","1.1.0","1.2.0","1.2.0a1","2.0.0a1","2.0.0a10","2.0.0a11","2.0.0a12","2.0.0a2","2.0.0a3","2.0.0a4","2.0.0a5","2.0.0a6","2.0.0a7","2.0.0a9","2.0.0rc1"]},{"source":"osv","ecosystem":"PyPI","package":"owlmixin","ranges":[{"type":"GIT","events":[{"introduced":"0"},{"fixed":"5d0575303f6df869a515ced4285f24ba721e0d4e"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}],"versions":["1.0.0","1.0.0b3","1.0.0b4","1.0.0b6","1.0.0b7","1.0.0rc1","1.0.0rc10","1.0.0rc11","1.0.0rc12","1.0.0rc13","1.0.0rc14","1.0.0rc15","1.0.0rc16","1.0.0rc2","1.0.0rc3","1.0.0rc4","1.0.0rc5","1.0.0rc6","1.0.0rc7","1.0.0rc8","1.0.0rc9","1.1.0","1.2.0","1.2.0a1","2.0.0a1","2.0.0a10","2.0.0a11","2.0.0a12","2.0.0a2","2.0.0a3","2.0.0a4","2.0.0a5","2.0.0a6","2.0.0a7","2.0.0a9","2.0.0rc1"]}],"products":[{"vendor":"owlmixin_project","product":"owlmixin"}],"references":[{"url":"https://github.com/tadashi-aikawa/owlmixin/commit/5d0575303f6df869a515ced4285f24ba721e0d4e","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16618-convert-through-owlmixin/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","article"]},{"url":"https://github.com/tadashi-aikawa/owlmixin/issues/12","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16618","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-ccmq-qvcp-5mrm","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/owlmixin/PYSEC-2017-22.yaml","tags":["web"]},{"url":"https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16618-convert-through-owlmixin","tags":["web"]},{"url":"https://github.com/tadashi-aikawa/owlmixin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2017-16618","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2017-11-08T03:00:00Z","modified":"2024-08-05T20:27:04.414Z","updated_at":"2026-11-02T14:33:21.453505Z"}],"euvd":[{"id":"EUVD-2017-0082","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2017-11-08T03:00:00Z","modified":"2024-08-05T20:27:04Z","updated_at":"2026-11-03T02:23:12.50701Z"}],"ghsa":[{"id":"GHSA-ccmq-qvcp-5mrm","title":"Unsafe deserialization in owlmixin","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2018-07-13T16:01:12Z","modified":"2024-10-07T21:07:58Z","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":"3.0","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"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:08.742903Z"}],"nvd":[{"id":"CVE-2017-16618","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2017-11-08T03:29:00.277Z","modified":"2026-06-17T01:09:34.71Z","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"}],"updated_at":"2026-11-02T14:04:08.635428Z"}],"osv":[{"id":"CVE-2017-16618","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2017-11-08T03:29:00.277Z","modified":"2026-10-20T10:47:46.993532359Z","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"}],"updated_at":"2026-11-02T15:44:04.853379Z"},{"id":"GHSA-ccmq-qvcp-5mrm","title":"Unsafe deserialization in owlmixin","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2018-07-13T16:01:12Z","modified":"2024-10-07T21:25:43.524284Z","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"},{"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-502"],"updated_at":"2026-11-02T15:46:44.927642Z"},{"id":"PYSEC-2017-22","description":"An exploitable vulnerability exists in the YAML loading functionality of util.py in OwlMixin before 2.0.0a12. A \"Load YAML\" string or file (aka load_yaml or load_yamlf) can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.","status":"published","published":"2017-11-08T03:29:00Z","modified":"2023-11-08T03:59:13.183583Z","updated_at":"2026-11-02T15:52:51.645172Z"}]}}