PT-2021-24124 · Unknown+2 · Action Pack+2

Published 2021-12-14 · Updated 2025-09-29 · CVE-2021-44528

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Action Pack versions 6.0.0 and later

Description: A vulnerability exists that could allow an attacker to craft X-Forwarded-Host headers in combination with certain allowed host formats, causing the Host Authorization middleware to redirect users to a malicious website.

Recommendations: For Action Pack versions 6.0.0 and later, update to a version that includes a fix for this issue, as no specific workaround is provided in the given information. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

ALSA-2025_16880

ALT-PU-2022-2630

ALT-PU-2023-4268

ALT-PU-2024-7814

BIT-RAILS-2021-44528

CVE-2021-44528

DSA-5372-1

GHSA-QPHC-HF5Q-V8FC

OPENSUSE-SU-2024:11821-1

Affected Products

Alt Linux

Action Pack

Red Os

References · 36

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2021-44528.yml · Exploit
• https://github.com/rails/rails/commit/0fccfb9a3097a9c4260c791f1a40b128517e7815 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-44528 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-44528 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-44528 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-rails-2021-44528 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-44528 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-44528 · Vendor Advisory
• https://debian.org/security/2023/dsa-5372 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11821-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-44528 · Security Note
• https://osv.dev/vulnerability/DSA-5372-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-qphc-hf5q-v8fc · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-44528 · Vendor Advisory
• https://github.com/rails/rails · Note