DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs1001817

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rails (PTS)buster2:
buster (security)2:
bookworm, sid2:6.1.7+dfsg-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
railssourcestretch(not affected)
railssourcebuster(not affected)


[buster] - rails <not-affected> (Vulnerable code introduced later)
[stretch] - rails <not-affected> (Vulnerable code introduced later) (master) (v6.1.4.2) (v6.0.4.2)
Introduced by: (v6.0.0.beta1)

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