{"id":"CVE-2020-27197","aliases":["GHSA-836c-xg97-8p4h","PYSEC-2020-59"],"url":"https://o3.security/vulnerability/CVE-2020-27197","summary":"libtaxii Server-Side Request Forgery vulnerability","details":"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.","published":"2020-10-17T20:15:10.657Z","modified":"2026-07-08T20:30:29.969105Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"libtaxii","fixedVersion":"1.1.118"}],"fix":{"url":"https://github.com/TAXIIProject/libtaxii/pull/247","label":"TAXIIProject/libtaxii#247"},"references":[{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/159662/Libtaxii-1.1.117-OpenTaxi-0.2.0-Server-Side-Request-Forgery.html"},{"type":"EVIDENCE","url":"https://github.com/TAXIIProject/libtaxii/issues/246"},{"type":"EVIDENCE","url":"https://github.com/eclecticiq/OpenTAXII/issues/176"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27197"},{"type":"WEB","url":"https://github.com/TAXIIProject/libtaxii/pull/247"},{"type":"WEB","url":"https://github.com/TAXIIProject/libtaxii/commit/23c6f7b69d99e965c8d53dc4710ae64da3fb4842"},{"type":"PACKAGE","url":"https://github.com/TAXIIProject/libtaxii"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-836c-xg97-8p4h"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/libtaxii/PYSEC-2020-59.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:30:29.969105Z"}}