velocity — security advisory
An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.
- Products
- velocity
- Affected versions
- Not specified
- Fixed versions
- 1.7-6
- CVEs
- CVE-2020-13936
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:36 UTC · Revision 1
Source evidence
An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.
osv:DEBIAN-CVE-2020-13936
velocity
Fixed versions: 1.7-6
velocity
Fixed versions: 1.7-6
velocity
Fixed versions: 1.7-6
Complete source record
{
"id": "86c7ef36ab4026b3eec22c73ba6662ee2734a5d5c57dbb94a9b843bcfa6bb7d5",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-13936",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-13936",
"summary": "An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.",
"evidence": "osv:DEBIAN-CVE-2020-13936",
"products": [
{
"name": {
"value": "velocity",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.7-6",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "velocity",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.7-6",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "velocity",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.7-6",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2020-13936",
"aliases": [
"DEBIAN-CVE-2020-13936"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.7-6"
}
]
}
],
"package": {
"name": "velocity",
"purl": "pkg:deb/debian/velocity?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-13936.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.7-6"
}
]
}
],
"package": {
"name": "velocity",
"purl": "pkg:deb/debian/velocity?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-13936.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.7-6"
}
]
}
],
"package": {
"name": "velocity",
"purl": "pkg:deb/debian/velocity?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-13936.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:00:36.737800858Z",
"provider": "osv",
"upstream": [
"CVE-2020-13936"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-13936"
]
},
"related_cves": [
{
"value": "CVE-2020-13936",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451236,
"published_at": "2021-03-10T08:15:14.103+00:00"
}