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CriticalFix available

spamassassin — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-1946

In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.

Products
spamassassin
Affected versions
Not specified
Fixed versions
3.4.5~pre1-1
CVEs
CVE-2020-1946
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 13:28 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-1946

core-osv · Original source

Published 25 Mar 2021, 10:15 UTC

In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.

osv:DEBIAN-CVE-2020-1946

spamassassin

Fixed versions: 3.4.5~pre1-1

spamassassin

Fixed versions: 3.4.5~pre1-1

spamassassin

Fixed versions: 3.4.5~pre1-1

Complete source record
{
  "id": "0d9a9d7911bac040a06947aa135a8de0ea0b0eb7ce41b3152d8b6b52c4b43e6f",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-1946",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-1946",
    "summary": "In Apache SpamAssassin before 3.4.5, malicious rule configuration (.cf) files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA version 3.4.5, users should only use update channels or 3rd party .cf files from trusted places.",
    "evidence": "osv:DEBIAN-CVE-2020-1946",
    "products": [
      {
        "name": {
          "value": "spamassassin",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.4.5~pre1-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "spamassassin",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.4.5~pre1-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "spamassassin",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.4.5~pre1-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "DEBIAN-CVE-2020-1946",
      "aliases": [
        "DEBIAN-CVE-2020-1946"
      ],
      "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": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.4.5~pre1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "spamassassin",
            "purl": "pkg:deb/debian/spamassassin?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-1946.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.4.5~pre1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "spamassassin",
            "purl": "pkg:deb/debian/spamassassin?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-1946.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.4.5~pre1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "spamassassin",
            "purl": "pkg:deb/debian/spamassassin?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-1946.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:29.248021817Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-1946"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-1946"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-1946",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 452344,
  "published_at": "2021-03-25T10:15:11.727+00:00"
}