High
ansible — security advisory
A flaw was found in Ansible Base when using the aws_ssm connection plugin as there is no namespace separation for file transfers. Files are written directly to the root bucket, making possible to have collisions when running multiple ansible processes. This issue affects mainly the service availability.
- Products
- ansible
- Affected versions
- 1.1+dfsg-1, 1.3.4+dfsg-1, 1.4.0+dfsg-1, 1.4.1+dfsg-1, 1.4.3+dfsg-1, 1.4.4+dfsg-1, 1.5.4+dfsg-1, 1.5.4+dfsg-1ubuntu0.1~esm1, 1.5.4+dfsg-1ubuntu0.1~esm2, 1.5.4+dfsg-1ubuntu0.1~esm3, 1.9.2+dfsg-2, 1.9.4-1, 11.2.0+dfsg-1, 12.0.0+dfsg-1, 12.0.0~a2+dfsg-1, 12.0.0~a4+dfsg-1, 12.0.0~a6+dfsg-1, 12.0.0~b1+dfsg-1, 12.2.0+dfsg-1, 13.1.0+dfsg-1, 13.1.0+dfsg-1ubuntu1, 13.4.0+dfsg-1, 2.0.0.2-2, 2.0.0.2-2ubuntu1, 2.0.0.2-2ubuntu1.1, 2.0.0.2-2ubuntu1.2, 2.0.0.2-2ubuntu1.3, 2.0.0.2-2ubuntu1.3+esm1, 2.0.0.2-2ubuntu1.3+esm2, 2.0.0.2-2ubuntu1.3+esm3, 2.0.0.2-2ubuntu1.3+esm4, 2.0.0.2-2ubuntu1.3+esm5, 2.0.0.2-2ubuntu1.3+esm6, 2.10.7+merged+base+2.10.8+dfsg-1, 2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1, 2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm4, 2.3.1.0+dfsg-2, 2.5.0+dfsg-1, 2.5.1+dfsg-1, 2.5.1+dfsg-1ubuntu0.1, 2.5.1+dfsg-1ubuntu0.1+esm1, 2.5.1+dfsg-1ubuntu0.1+esm2, 2.5.1+dfsg-1ubuntu0.1+esm3, 2.5.1+dfsg-1ubuntu0.1+esm4, 2.5.1+dfsg-1ubuntu0.1+esm5, 2.8.3+dfsg-1, 2.8.6+dfsg-1, 2.9.2+dfsg-1, 2.9.4+dfsg-1, 2.9.6+dfsg-1, 2.9.6+dfsg-1ubuntu0.1~esm1, 2.9.6+dfsg-1ubuntu0.1~esm2, 2.9.6+dfsg-1ubuntu0.1~esm3, 7.7.0+dfsg-1, 7.7.0+dfsg-3, 9.2.0+dfsg-0ubuntu4, 9.2.0+dfsg-0ubuntu5
- Fixed versions
- Not specified
- CVEs
- CVE-2020-25636
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:37 UTC · Revision 1
Source evidence
A flaw was found in Ansible Base when using the aws_ssm connection plugin as there is no namespace separation for file transfers. Files are written directly to the root bucket, making possible to have collisions when running multiple ansible processes. This issue affects mainly the service availability.
osv:UBUNTU-CVE-2020-25636
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
ansible
Fixed versions: Not specified
Complete source record
{
"id": "5ed83c74118351a9380520836c155e10253475d31bbdd501c4e9a49d7b815751",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-25636",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2020-25636",
"summary": "A flaw was found in Ansible Base when using the aws_ssm connection plugin as there is no namespace separation for file transfers. Files are written directly to the root bucket, making possible to have collisions when running multiple ansible processes. This issue affects mainly the service availability.",
"evidence": "osv:UBUNTU-CVE-2020-25636",
"products": [
{
"name": {
"value": "ansible",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.0+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.3+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.4+dfsg-1ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.4+dfsg-1ubuntu0.1~esm2",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.4+dfsg-1ubuntu0.1~esm3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.9.2+dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.1",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.2",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm2",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm3",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm4",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm5",
"evidence": "/affected/1/versions"
},
{
"value": "2.0.0.2-2ubuntu1.3+esm6",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.3.1.0+dfsg-2",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.0+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1+esm1",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1+esm2",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1+esm3",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1+esm4",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1ubuntu0.1+esm5",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.8.3+dfsg-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.8.6+dfsg-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.2+dfsg-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.4+dfsg-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.6+dfsg-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.6+dfsg-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.6+dfsg-1ubuntu0.1~esm2",
"evidence": "/affected/3/versions"
},
{
"value": "2.9.6+dfsg-1ubuntu0.1~esm3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.10.7+merged+base+2.10.8+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
},
{
"value": "2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm4",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "7.7.0+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "7.7.0+dfsg-3",
"evidence": "/affected/5/versions"
},
{
"value": "9.2.0+dfsg-0ubuntu4",
"evidence": "/affected/5/versions"
},
{
"value": "9.2.0+dfsg-0ubuntu5",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "11.2.0+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "12.0.0~a2+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "12.0.0~a4+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "12.0.0~a6+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "12.0.0~b1+dfsg-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "13.1.0+dfsg-1ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "13.4.0+dfsg-1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "ansible",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "12.0.0~b1+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "12.0.0+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "12.2.0+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "13.1.0+dfsg-1",
"evidence": "/affected/8/versions"
},
{
"value": "13.1.0+dfsg-1ubuntu1",
"evidence": "/affected/8/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2020-25636",
"aliases": [
"UBUNTU-CVE-2020-25636"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"versions": [
"1.1+dfsg-1",
"1.3.4+dfsg-1",
"1.4.0+dfsg-1",
"1.4.1+dfsg-1",
"1.4.3+dfsg-1",
"1.4.4+dfsg-1",
"1.5.4+dfsg-1",
"1.5.4+dfsg-1ubuntu0.1~esm1",
"1.5.4+dfsg-1ubuntu0.1~esm2",
"1.5.4+dfsg-1ubuntu0.1~esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3"
},
{
"binary_name": "ansible-fireball",
"binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3"
},
{
"binary_name": "ansible-node-fireball",
"binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"1.9.2+dfsg-2",
"1.9.4-1",
"2.0.0.2-2",
"2.0.0.2-2ubuntu1",
"2.0.0.2-2ubuntu1.1",
"2.0.0.2-2ubuntu1.2",
"2.0.0.2-2ubuntu1.3",
"2.0.0.2-2ubuntu1.3+esm1",
"2.0.0.2-2ubuntu1.3+esm2",
"2.0.0.2-2ubuntu1.3+esm3",
"2.0.0.2-2ubuntu1.3+esm4",
"2.0.0.2-2ubuntu1.3+esm5",
"2.0.0.2-2ubuntu1.3+esm6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "2.0.0.2-2ubuntu1.3+esm6"
},
{
"binary_name": "ansible-fireball",
"binary_version": "2.0.0.2-2ubuntu1.3+esm6"
},
{
"binary_name": "ansible-node-fireball",
"binary_version": "2.0.0.2-2ubuntu1.3+esm6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"2.3.1.0+dfsg-2",
"2.5.0+dfsg-1",
"2.5.1+dfsg-1",
"2.5.1+dfsg-1ubuntu0.1",
"2.5.1+dfsg-1ubuntu0.1+esm1",
"2.5.1+dfsg-1ubuntu0.1+esm2",
"2.5.1+dfsg-1ubuntu0.1+esm3",
"2.5.1+dfsg-1ubuntu0.1+esm4",
"2.5.1+dfsg-1ubuntu0.1+esm5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "2.5.1+dfsg-1ubuntu0.1+esm5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"2.8.3+dfsg-1",
"2.8.6+dfsg-1",
"2.9.2+dfsg-1",
"2.9.4+dfsg-1",
"2.9.6+dfsg-1",
"2.9.6+dfsg-1ubuntu0.1~esm1",
"2.9.6+dfsg-1ubuntu0.1~esm2",
"2.9.6+dfsg-1ubuntu0.1~esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "2.9.6+dfsg-1ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"2.10.7+merged+base+2.10.8+dfsg-1",
"2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1",
"2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"7.7.0+dfsg-1",
"7.7.0+dfsg-3",
"9.2.0+dfsg-0ubuntu4",
"9.2.0+dfsg-0ubuntu5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "9.2.0+dfsg-0ubuntu5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"11.2.0+dfsg-1",
"12.0.0~a2+dfsg-1",
"12.0.0~a4+dfsg-1",
"12.0.0~a6+dfsg-1",
"12.0.0~b1+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "12.0.0~b1+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"13.1.0+dfsg-1ubuntu1",
"13.4.0+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "13.4.0+dfsg-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ansible",
"purl": "pkg:deb/ubuntu/ansible?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"12.0.0~b1+dfsg-1",
"12.0.0+dfsg-1",
"12.2.0+dfsg-1",
"13.1.0+dfsg-1",
"13.1.0+dfsg-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-25636.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ansible",
"binary_version": "13.1.0+dfsg-1ubuntu1"
}
]
}
}
],
"modified": "2026-10-17T12:55:51.917421746Z",
"provider": "osv",
"upstream": [
"CVE-2020-25636"
],
"references": [
"https://ubuntu.com/security/CVE-2020-25636",
"https://github.com/ansible-collections/community.aws/issues/221",
"https://www.cve.org/CVERecord?id=CVE-2020-25636"
]
},
"related_cves": [
{
"value": "CVE-2020-25636",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 354180,
"published_at": "2020-10-05T13:15:00+00:00"
}