Critical
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-27197
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:25 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-27197
Complete source record
{
"id": "e967f32a560b89c15fdd36b6e8b883e217a66e2a5428008911fbf373098665c7",
"url": "https://osv.dev/vulnerability/CVE-2020-27197",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-27197",
"summary": "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.",
"evidence": "osv:CVE-2020-27197",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2020-27197",
"aliases": [
"CVE-2020-27197",
"GHSA-836c-xg97-8p4h",
"PYSEC-2020-59"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/eclecticiq/opentaxii",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "f317dfa89f40920668426b70343b5e6f0e1c57a1"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:eclecticiq:opentaxii:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.2.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"0.2.0",
"0.1.12",
"0.1.11",
"0.1.10",
"0.1.9",
"0.1.8",
"0.1.7",
"0.1.6",
"0.1.5",
"0.1.4",
"0.1.3",
"0.1.2",
"0.1.1",
"0.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27197.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/taxiiproject/libtaxii",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "c8e9c9bb67b32b3b7d05fa07b98df9b721246b04"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:libtaxii_project:libtaxii:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.1.117"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"1.1.117",
"1.1.116",
"1.1.115",
"1.1.114",
"1.1.113",
"1.1.112",
"1.1.111",
"1.1.110",
"1.1.109",
"1.1.108",
"1.1.107",
"1.1.106",
"1.1.105",
"1.1.104",
"1.1.103",
"1.1.102",
"1.1.101",
"1.1.100",
"1.0.107",
"1.0.106",
"1.0.105",
"1.0.104",
"1.0.103",
"1.0.101",
"1.0.100",
"1.0.090"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27197.json"
}
}
],
"modified": "2026-10-20T10:54:19.749326897Z",
"provider": "osv",
"references": [
"https://github.com/TAXIIProject/libtaxii/issues/246",
"https://github.com/eclecticiq/OpenTAXII/issues/176"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-27197",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 385060,
"published_at": "2020-10-17T20:15:10.657+00:00"
}