# CVE-2021-44528: rails: A open redirect vulnerability exists in Action Pack >= 6.0.0 that could allow an attacker to craft a "X-Forwarded-Hos...

CVE-2021-44528 is fixed in rails on 1 platform, first by DEBIAN-CVE-2021-44528, released January 10, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-44528
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0442
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 10, 2022

## Description

A open redirect vulnerability exists in Action Pack >= 6.0.0 that could allow an attacker to craft a "X-Forwarded-Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rails Debian 12.15 (bookworm) | 2:6.1.4.6+dfsg-1 | [DEBIAN-CVE-2021-44528](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44528.md) | Jan 10, 2022 |
| Linux | rails Debian 13.5 (trixie) | 2:6.1.4.6+dfsg-1 | [DEBIAN-CVE-2021-44528](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44528.md) | Jan 10, 2022 |
| Linux | rails Debian 14 | 2:6.1.4.6+dfsg-1 | [DEBIAN-CVE-2021-44528](https://patchblox.com/security/data/fix/linux/debian-cve-2021-44528.md) | Jan 10, 2022 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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