# ALBA-2021:4604: Security update for 2 packages

ALBA-2021:4604, released November 10, 2021, fixes 1 CVE across 2 products. One of them is being exploited (CVE-2021-40438); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/alba-2021-4604
- Platform: Linux
- Released: Nov 10, 2021
- Priority: Patch now (Closes CVE-2021-40438, exploited (CISA KEV, ransomware))
- CVEs: 1, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://osv.dev/vulnerability/ALBA-2021:4604

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [mod_http2](https://patchblox.com/security/data/product/linux/mod-http2.md) | almalinux 8 | 1.15.7-3.module_el8.5.0+2609+b30d9eec |
| [mod_md](https://patchblox.com/security/data/product/linux/mod-md.md) | almalinux 8 | 1:2.0.8-8.module_el8.5.0+2609+b30d9eec |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-40438](https://patchblox.com/security/data/cve/CVE-2021-40438.md) | Patch now | httpd: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.  Security Fix(es... | 9.0 | 1.0000 | CISA KEV, Ransomware |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo