CVE catalog

CVE-2020-1946

spamassassin: CVE-2020-1946

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Dec 31, 2020, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 6.13% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	spamassassin	sid	`4.0.3~rc1-1`	fixed
Debian	spamassassin	forky	`4.0.2+svn1939112-1`	fixed
Debian	spamassassin	trixie	`4.0.1-5`	fixed
Debian	spamassassin	bookworm	`4.0.1-1~deb12u1`	fixed
Alpine	spamassassin	3.10	`3.4.5-r0`	fixed
Alpine	spamassassin	3.11	`3.4.5-r0`	fixed
Alpine	spamassassin	3.12	`3.4.5-r0`	fixed
Alpine	spamassassin	3.13	`3.4.5-r0`	fixed
Alpine	spamassassin	3.14	`3.4.5-r0`	fixed
Alpine	spamassassin	3.15	`3.4.5-r0`	fixed
Alpine	spamassassin	3.16	`3.4.5-r0`	fixed
Alpine	spamassassin	3.17	`3.4.5-r0`	fixed
Alpine	spamassassin	3.18	`3.4.5-r0`	fixed
Alpine	spamassassin	3.19	`3.4.5-r0`	fixed
Alpine	spamassassin	3.20	`3.4.5-r0`	fixed
Alpine	spamassassin	3.21	`3.4.5-r0`	fixed
Alpine	spamassassin	3.22	`3.4.5-r0`	fixed
Alpine	spamassassin	3.23	`3.4.5-r0`	fixed
Alpine	spamassassin	3.24	`3.4.5-r0`	fixed
Ubuntu	spamassassin	16.04	`3.4.1-1`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.1-2`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.1-3`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.1`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.2`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.3`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.4`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.5`	fixed
Ubuntu	spamassassin	18.04	`3.4.1-7`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.1-8`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.1-8build1`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.1`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.2`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.3`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.4`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.5`	fixed
Ubuntu	spamassassin	20.04	`3.4.2-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.2-2`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3~rc6+1-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3~rc7-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4~rc1-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4-1ubuntu1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4-1ubuntu1.1`	fixed
Ubuntu	spamassassin	pro	`3.3.2-6ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.3.2-8ubuntu1`	vulnerable
Ubuntu	spamassassin	pro	`3.3.2-8ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu2.1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm3`	fixed
Ubuntu	spamassassin	pro	`3.3.2-6ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.3.2-8ubuntu1`	vulnerable
Ubuntu	spamassassin	pro	`3.3.2-8ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.0-1ubuntu2.1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm1`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm2`	vulnerable
Ubuntu	spamassassin	pro	`3.4.2-0ubuntu0.14.04.1+esm3`	fixed
Ubuntu	spamassassin	16.04	`3.4.1-1`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.1-2`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.1-3`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.1`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.2`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.3`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.4`	vulnerable
Ubuntu	spamassassin	16.04	`3.4.2-0ubuntu0.16.04.5`	fixed
Ubuntu	spamassassin	18.04	`3.4.1-7`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.1-8`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.1-8build1`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.1`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.2`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.3`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.4`	vulnerable
Ubuntu	spamassassin	18.04	`3.4.2-0ubuntu0.18.04.5`	fixed
Ubuntu	spamassassin	20.04	`3.4.2-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.2-2`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3~rc6+1-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3~rc7-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.3-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4~rc1-1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4-1ubuntu1`	vulnerable
Ubuntu	spamassassin	20.04	`3.4.4-1ubuntu1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	spamassassin	source	sid	`3.4.5~pre1-1`	not yet assigned	Not reported	[985962]
Debian	spamassassin	source	forky	`3.4.5~pre1-1`	not yet assigned	Not reported	[985962]
Debian	spamassassin	source	trixie	`3.4.5~pre1-1`	not yet assigned	Not reported	[985962]
Debian	spamassassin	source	bookworm	`3.4.5~pre1-1`	not yet assigned	Not reported	[985962]
Alpine	spamassassin	apk	3.10	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.11	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.12	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.13	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.14	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.15	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.16	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.17	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.18	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.19	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.20	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.21	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.22	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.23	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Alpine	spamassassin	apk	3.24	`3.4.5-r0`	Not reported	ALPINE-CVE-2020-1946	Not reported
Ubuntu	spamassassin	deb	16.04	`3.4.2-0ubuntu0.16.04.5`	Not reported	USN-4899-1	Not reported
Ubuntu	spamassassin	deb	18.04	`3.4.2-0ubuntu0.18.04.5`	Not reported	USN-4899-1	Not reported
Ubuntu	spamassassin	deb	20.04	`3.4.4-1ubuntu1.1`	Not reported	USN-4899-1	Not reported
Ubuntu	spamassassin	deb	pro	`3.4.2-0ubuntu0.14.04.1+esm3`	Not reported	USN-4899-2	Not reported
Ubuntu	spamassassin	deb	pro	`3.4.2-0ubuntu0.14.04.1+esm3`	Not reported	UBUNTU-CVE-2020-1946	Not reported
Ubuntu	spamassassin	deb	16.04	`3.4.2-0ubuntu0.16.04.5`	Not reported	UBUNTU-CVE-2020-1946	Not reported
Ubuntu	spamassassin	deb	18.04	`3.4.2-0ubuntu0.18.04.5`	Not reported	UBUNTU-CVE-2020-1946	Not reported
Ubuntu	spamassassin	deb	20.04	`3.4.4-1ubuntu1.1`	Not reported	UBUNTU-CVE-2020-1946	Not reported

[Debian bug #985962]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[sa-compile]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
[spamassassin]Fixed
Details (2)
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
[spamc]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-1~deb12u1 · amd64 · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
- 4.0.1-1~deb12u1 · arm64 · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
[spamd]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12
- 4.0.1-1~deb12u1 · all · bookworm
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · bookworm; dsa · spamassassin · debian · 12

[Debian 13 (Trixie)]

[sa-compile]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
[spamassassin]Fixed
Details (2)
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
[spamc]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-5 · amd64 · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
- 4.0.1-5 · arm64 · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
[spamd]Fixed
Source package: [spamassassin]
Details (2)
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13
- 4.0.1-5 · all · trixie
  Fixed · Fixed: 3.4.5~pre1-1
  dsa · spamassassin · debian · 13

Observed: Oct 23, 2026, 5:48:55 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]