What’s Vulnerable › Vulnerabilities

CVE-2020-12108

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-05-06 · updated 2026-06-17
• Weakness: CWE-74

Description

/options/mailman in GNU Mailman before 2.1.31 allows Arbitrary Content Injection.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04
• Debian Linux: 9.0, 10.0
• Fedoraproject Fedora: 31
• GNU Mailman: before 2.1.31 — fixed in 2.1.31
• openSUSE Backports Sle: 15.0-sp1, 15.0-sp2
• openSUSE Leap: 15.1, 15.2

How to fix

Upgrade to a fixed version: GNU Mailman 2.1.31. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00036.html
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00047.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00063.html
• https://bugs.launchpad.net/mailman/+bug/1873722
• https://code.launchpad.net/mailman
• https://lists.debian.org/debian-lts-announce/2020/05/msg00007.html
• https://lists.debian.org/debian-lts-announce/2020/07/msg00007.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/74EQIVFB34Q4UYAQLCUWG55YLKAUWCHD/
• https://mail.python.org/pipermail/mailman-announce/
• https://usn.ubuntu.com/4354-1/
• https://www.debian.org/security/2021/dsa-4991

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