# RHSA-2021:4826: mailman security update

RHSA-2021:4826, released November 23, 2021, fixes 2 CVEs in mailman (version 3:2.1.29-12.module+el8.5.0+13211+e8845b76.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2021-4826
- Platform: Linux
- Released: Nov 23, 2021
- Priority: High (Closes CVE-2021-42097, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2021:4826

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [mailman](https://patchblox.com/security/data/product/linux/mailman.md) | RHEL 8 | 3:2.1.29-12.module+el8.5.0+13211+e8845b76.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-42097](https://patchblox.com/security/data/cve/CVE-2021-42097.md) | High | mailman: Mailman is a program used to help manage e-mail discussion lists.  Security Fix(es):  * mailman: CSRF token bypass al... | 8.0 | 0.0133 |  |
| [CVE-2021-42096](https://patchblox.com/security/data/cve/CVE-2021-42096.md) | High | mailman: Mailman is a program used to help manage e-mail discussion lists.  Security Fix(es):  * mailman: CSRF token bypass al... | 8.0 | 0.0125 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo