# mailman security updates

Patch Radar has 13 security fixes for mailman, closing 10 CVEs. The newest is RHSA-2021:4916 (3:2.1.29-12.module+el8.5.0+13466+327eb9f3.2), released December 2, 2021.

- Web page: https://patchblox.com/security/product/linux/mailman
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [RHSA-2021:4916](https://patchblox.com/security/data/fix/linux/rhsa-2021-4916.md) | Dec 2, 2021 | RHEL 8 3:2.1.29-12.module+el8.5.0+13466+327eb9f3.2 | High | 1 | 0 |
| [mailman 1:2.1.26-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.6.md) | Dec 1, 2021 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.6 | High | 1 | 0 |
| [mailman 1:2.1.29-1ubuntu3.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mailman-1-2.1.29-1ubuntu3.1-esm2.md) | Dec 1, 2021 | Ubuntu 20.04 LTS (focal) 1:2.1.29-1ubuntu3.1+esm2 | High | 1 | 0 |
| [RHSA-2021:4826](https://patchblox.com/security/data/fix/linux/rhsa-2021-4826.md) | Nov 23, 2021 | RHEL 8 3:2.1.29-12.module+el8.5.0+13211+e8845b76.1 | High | 2 | 0 |
| [mailman 1:2.1.26-1ubuntu0.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.5.md) | Nov 12, 2021 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.5 | Routine | 2 | 0 |
| [mailman 1:2.1.29-1ubuntu3.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mailman-1-2.1.29-1ubuntu3.1-esm1.md) | Nov 12, 2021 | Ubuntu 20.04 LTS (focal) 1:2.1.29-1ubuntu3.1+esm1 | Routine | 2 | 0 |
| [mailman 1:2.1.29-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mailman-1-2.1.29-1ubuntu3.1.md) | Oct 20, 2021 | Ubuntu 20.04 LTS (focal) 1:2.1.29-1ubuntu3.1 | High | 5 | 0 |
| [mailman 1:2.1.26-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.4.md) | Oct 20, 2021 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.4 | High | 2 | 0 |
| [RHSA-2021:1751](https://patchblox.com/security/data/fix/linux/rhsa-2021-1751.md) | May 18, 2021 | RHEL 8 3:2.1.29-11.module+el8.4.0+8277+5e2c6e6e | Routine | 2 | 0 |
| [RHSA-2020:4667](https://patchblox.com/security/data/fix/linux/rhsa-2020-4667.md) | Nov 4, 2020 | RHEL 8 3:2.1.29-10.module+el8.3.0+6860+8e47d84b | Routine | 1 | 0 |
| [mailman 1:2.1.26-1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.3.md) | Jun 24, 2020 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.3 | Routine | 1 | 0 |
| [mailman 1:2.1.26-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.2.md) | May 6, 2020 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.2 | Routine | 1 | 0 |
| [mailman 1:2.1.26-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.1.md) | Apr 24, 2020 | Ubuntu 18.04.6 LTS (bionic) 1:2.1.26-1ubuntu0.1 | Routine | 3 | 0 |

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Data as of 2026-11-07T00:32:44Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo