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Vulnerability record · CVE-2018-11805 · published 12 December 2019

CVE-2018-11805: Apache spamassassin os command injection vulnerability

Apache · Spamassassin

In Apache SpamAssassin before 3.4.3, nefarious 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 3.4.3, we recommend that users should only use update channels or 3rd party .cf files from trusted places.

6.7 CVSS 3.1 Medium EPSS 0.87% · top 42.8% CWE-78 · OS command injection
6.7CVSS 3.1 base score, v2 7.2
0.87%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
58References
17 Jun 2026Last modified by NVD

Description

In Apache SpamAssassin before 3.4.3, nefarious 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 3.4.3, we recommend that users should only use update channels or 3rd party .cf files from trusted places.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00003.html
http://www.openwall.com/lists/oss-security/2019/12/12/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/01/30/2
http://www.openwall.com/lists/oss-security/2020/01/30/3
https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7647 Permissions Required
https://lists.apache.org/thread.html/0b5c73809d0690527341d940029f743807b70550050fd23ee869c5e5%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/2946b38caec47f7f6a79e8e03d2aa723794186e59a7dc6b5e76dfc18%40%3Cannounce.spamassassin
https://lists.apache.org/thread.html/6f89f82a573ea616dce53ec67e52d963618a9f9ac71da5c1efdbd166%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/8534b60bae95ac3a8a4adb840f4ab26135f1c973ce197ff44439cbae%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/bc58907171c6585e5875a3ce86066d4956c218911cb74e3156de4433%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/c1f59b7e13b7f2c12f847f7d0dec2636df3cdbcaa6d8309007395ff4%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/d015dc5b4f24fd6777a85d068502a9c5d58d69d877ed5b0eb9a22cd5%40%3Cdev.spamassassin.apac
https://lists.apache.org/thread.html/r217177f7de36deab36dab88db4b6448961122571176dd4b2c133d08e%40%3Cannounce.spamassassi
https://lists.apache.org/thread.html/r2578c486552637bfedbe624940cc60d6463bd90044c887bdebb75e74%40%3Cusers.spamassassin.a
https://lists.apache.org/thread.html/r3d32ebf97b1245b8237763444e911c4595d2ad5e34a1641840d8146f%40%3Cusers.spamassassin.a
https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cannounce.apache.org%
https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cdev.spamassassin.apa
https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cusers.spamassassin.a
https://lists.apache.org/thread.html/r71f789fcd6339144e3d4db8f4128def12c341e638bd0107a0b82a05b%40%3Cannounce.spamassassi
https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cannounce.apache.org%
https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cdev.spamassassin.apa
https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cusers.spamassassin.a
https://lists.debian.org/debian-lts-announce/2019/12/msg00019.html Mailing ListThird Party Advisory
https://seclists.org/bugtraq/2019/Dec/27 Mailing ListThird Party Advisory
https://seclists.org/oss-sec/2019/q4/154 Mailing ListThird Party Advisory
https://svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.3.txt Mailing ListVendor Advisory
https://usn.ubuntu.com/4237-1/
https://usn.ubuntu.com/4237-2/
https://www.debian.org/security/2019/dsa-4584 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00003.html
http://www.openwall.com/lists/oss-security/2019/12/12/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/01/30/2
http://www.openwall.com/lists/oss-security/2020/01/30/3
https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7647 Permissions Required
https://lists.apache.org/thread.html/0b5c73809d0690527341d940029f743807b70550050fd23ee869c5e5%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/2946b38caec47f7f6a79e8e03d2aa723794186e59a7dc6b5e76dfc18%40%3Cannounce.spamassassin
https://lists.apache.org/thread.html/6f89f82a573ea616dce53ec67e52d963618a9f9ac71da5c1efdbd166%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/8534b60bae95ac3a8a4adb840f4ab26135f1c973ce197ff44439cbae%40%3Cusers.spamassassin.ap
https://lists.apache.org/thread.html/bc58907171c6585e5875a3ce86066d4956c218911cb74e3156de4433%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/c1f59b7e13b7f2c12f847f7d0dec2636df3cdbcaa6d8309007395ff4%40%3Cusers.spamassassin.ap

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Source: NIST National Vulnerability Database (record CVE-2018-11805), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.