{"id":"CVE-2020-27197","aliases":["EUVD-2020-0099","GHSA-836c-xg97-8p4h","PYSEC-2020-59"],"status":"disputed","title":"libtaxii Server-Side Request Forgery vulnerability","description":"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.","severity":{"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","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02308,"percentile":0.83506,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2020-10-17T19:19:11Z","modified":"2026-10-20T10:54:19Z","fixes":[{"ecosystem":"PyPI","package":"libtaxii","fixed_in":["1.1.118"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"libtaxii","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.118"}]}]},{"source":"osv","ecosystem":"PyPI","package":"libtaxii","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.118"}]}],"versions":["1.0.090","1.0.100","1.0.101","1.0.103","1.0.104","1.0.105","1.0.106","1.0.107","1.1.100","1.1.101","1.1.102","1.1.103","1.1.104","1.1.105","1.1.106","1.1.107","1.1.108","1.1.109","1.1.110","1.1.111","1.1.112","1.1.113","1.1.114","1.1.115","1.1.116","1.1.117"]},{"source":"osv","ecosystem":"PyPI","package":"libtaxii","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.118"}]}],"versions":["1.0.090","1.0.100","1.0.101","1.0.103","1.0.104","1.0.105","1.0.106","1.0.107","1.1.100","1.1.101","1.1.102","1.1.103","1.1.104","1.1.105","1.1.106","1.1.107","1.1.108","1.1.109","1.1.110","1.1.111","1.1.112","1.1.113","1.1.114","1.1.115","1.1.116","1.1.117"]}],"products":[{"vendor":"eclecticiq","product":"opentaxii"},{"vendor":"libtaxii_project","product":"libtaxii"}],"references":[{"url":"https://github.com/eclecticiq/OpenTAXII/issues/176","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web","report"]},{"url":"https://github.com/TAXIIProject/libtaxii/issues/246","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web","report"]},{"url":"http://packetstormsecurity.com/files/159662/Libtaxii-1.1.117-OpenTaxi-0.2.0-Server-Side-Request-Forgery.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27197","tags":["advisory"]},{"url":"https://github.com/TAXIIProject/libtaxii/pull/247","tags":["web"]},{"url":"https://github.com/TAXIIProject/libtaxii/commit/23c6f7b69d99e965c8d53dc4710ae64da3fb4842","tags":["web"]},{"url":"https://github.com/advisories/GHSA-836c-xg97-8p4h","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/libtaxii/PYSEC-2020-59.yaml","tags":["web"]},{"url":"https://github.com/TAXIIProject/libtaxii","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-27197","description":"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.","status":"disputed","published":"2020-10-17T19:19:11Z","modified":"2024-08-04T16:11:35.923Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-0099","description":"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.","status":"published","published":"2020-10-17T19:19:11Z","modified":"2024-08-04T16:11:35Z","updated_at":"2026-11-03T03:07:13.515696Z"}],"ghsa":[{"id":"GHSA-836c-xg97-8p4h","title":"libtaxii Server-Side Request Forgery vulnerability","description":"\"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.\"\"","status":"published","published":"2021-04-30T17:34:48Z","modified":"2024-09-27T21:39:29Z","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-918"],"updated_at":"2026-11-02T14:38:06.988799Z"}],"nvd":[{"id":"CVE-2020-27197","description":"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.","status":"disputed","published":"2020-10-17T20:15:10.657Z","modified":"2026-06-17T03:08:56.06Z","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","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-918"],"updated_at":"2026-11-02T14:06:19.351389Z"}],"osv":[{"id":"CVE-2020-27197","description":"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.","status":"published","published":"2020-10-17T20:15:10.657Z","modified":"2026-10-20T10:54:19.749326897Z","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"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"GHSA-836c-xg97-8p4h","title":"libtaxii Server-Side Request Forgery vulnerability","description":"\"TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.\"\"","status":"published","published":"2021-04-30T17:34:48Z","modified":"2025-02-18T05:28:32.695791Z","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-918"],"updated_at":"2026-11-02T15:46:41.732368Z"},{"id":"PYSEC-2020-59","description":"** DISPUTED ** TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method \"wraps the lxml library\" and that this may be an issue to \"raise ... to the lxml group.\"","status":"published","published":"2020-10-17T20:15:00Z","modified":"2023-11-08T04:03:21.072622Z","updated_at":"2026-11-02T15:52:52.682031Z"}]}}