High
Security advisory
A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-1734
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:54 UTC · Revision 1
Source evidence
A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.
osv:CVE-2020-1734
Complete source record
{
"id": "988cf849a554aa46715d4e87e850a1db2a84da4d98abc1b68d3c55634709924e",
"url": "https://osv.dev/vulnerability/CVE-2020-1734",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-1734",
"summary": "A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.",
"evidence": "osv:CVE-2020-1734",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-1734",
"aliases": [
"CVE-2020-1734",
"GHSA-h39q-95q5-9jfp",
"PYSEC-2020-6"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ansible/ansible",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "8fd406ee8e3a14be72b3cbbfe91d03fe35952f95"
},
{
"introduced": "d28e4b63c7b70acbaf0a1fedd53c91b6686574a0"
},
{
"last_affected": "9388be4269bdf83406bfa9245142de8b7dc8cfbc"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redhat:ansible_engine:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.7.16"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:redhat:ansible_engine:2.8.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.8"
},
{
"last_affected": "2.8.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:redhat:ansible_engine:2.9.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.5"
},
{
"last_affected": "2.9.5"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.8.8",
"2.9.5",
"v2.9.5",
"v2.9.4",
"v2.9.3",
"v2.7.16",
"v2.9.2",
"v2.9.1",
"v2.7.15",
"v2.9.0",
"v2.9.0rc5",
"v2.7.14",
"v2.9.0rc4",
"v2.9.0rc3",
"v2.9.0rc2",
"v2.9.0rc1",
"v2.9.0b1",
"stable-2.9-branchpoint",
"v2.7.13",
"v2.7.12",
"v2.7.11",
"v2.8.0a1",
"v2.7.10",
"v2.7.9",
"v2.7.8",
"v2.7.7",
"v2.7.6",
"v2.7.5",
"v2.7.4",
"v2.7.3",
"v2.7.2",
"v2.7.1",
"v2.7.0",
"v2.7.0rc4",
"v2.7.0rc3",
"v2.7.0rc2",
"v2.7.0rc1",
"v2.7.0b1",
"v2.7.0.a1",
"v2.6.0a1",
"v2.0.0-0.5.beta3",
"v2.0.0-0.4.beta2",
"v2.0.0-0.3.beta1",
"v2.0.0-0.2.alpha2",
"v2.0.0-0.1.alpha1",
"v1.6.0",
"v1.4.0",
"v1.2",
"v1.1",
"v1.0",
"0.7",
"0.3",
"0.0.1",
"0.01"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-1734.json"
}
}
],
"modified": "2026-10-20T10:52:00.679164940Z",
"provider": "osv",
"references": [
"https://github.com/ansible/ansible/issues/67792",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1734"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:ansible_tower",
"extracted_events": [
{
"range": [
{
"last_affected": "3.3.4"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:ansible_tower:3.4.5:*:*:*:*:*:*:*",
"cpe:2.3:a:redhat:ansible_tower:3.5.5:*:*:*:*:*:*:*",
"cpe:2.3:a:redhat:ansible_tower:3.6.3:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:ansible_tower",
"extracted_events": [
{
"range": [
{
"introduced": "3.4.5"
},
{
"last_affected": "3.4.5"
},
{
"introduced": "3.5.5"
},
{
"last_affected": "3.5.5"
},
{
"introduced": "3.6.3"
},
{
"last_affected": "3.6.3"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-1734",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383198,
"published_at": "2020-03-03T22:15:10.843+00:00"
}