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velocity — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-13936

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

DEBIAN-CVE-2020-13936

core-osv · Original source

Published 10 Mar 2021, 08:15 UTC

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"
}