What’s Vulnerable › Vulnerabilities

CVE-2021-44528

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-10 · updated 2026-06-17
• Weakness: CWE-601

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.

Affected products

• Ruby on Rails: 6.0.4.2, 6.1.4.2, 7.0.0-rc2

References

• https://github.com/rails/rails/commit/0fccfb9a3097a9c4260c791f1a40b128517e7815
• https://security.netapp.com/advisory/ntap-20240208-0003/
• https://www.debian.org/security/2023/dsa-5372
• https://github.com/rails/rails/commit/0fccfb9a3097a9c4260c791f1a40b128517e7815
• https://security.netapp.com/advisory/ntap-20240208-0003/
• https://www.debian.org/security/2023/dsa-5372

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