CVE-2021-22903
- Source
- https://cve.org/CVERecord?id=CVE-2021-22903
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22903.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-22903
- Aliases
- Downstream
- Published
- 2021-06-11T16:15:11.437Z
- Modified
- 2026-04-10T04:30:15.410907Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The actionpack ruby gem before 6.1.3.2 suffers from a possible open redirect vulnerability. Specially crafted 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. This is similar to CVE-2021-22881. Strings in config.hosts that do not have a leading dot are converted to regular expressions without proper escaping. This causes, for example,
config.hosts << "sub.example.com"to permit a request with a Host header value ofsub-example.com. - References
Affected packages
Git / github.com/rails/rails
Affected ranges
- Type
- GIT
- Repo
- https://github.com/rails/rails
- Events
-
IntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "6.1.1" }, { "fixed": "6.1.3.2" }, { "introduced": "0" }, { "last_affected": "6.1.0-rc2" } ] }
Affected versions
v0.*
v0.10.0
v0.10.1
v0.11.0
v0.11.1
v0.12.0
v0.13.0
v0.13.1
v0.14.1
v0.14.3
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v0.9.4.1
v0.9.5
v1.*
v1.1.0
v1.1.0_RC1
v1.1.1
v2.*
v2.0.0
v2.0.0_PR
v2.0.0_RC1
v2.0.0_RC2
v2.0.1
v3.*
v3.0.0.beta.3
v3.0.0.beta3
v3.1.0.beta1
v3.1.0.rc1
v3.2.0.rc1
v4.*
v4.0.0.beta1
v4.0.0.rc1
v4.2.0.beta1
v5.*
v5.0.0.beta1
v5.0.0.beta2
v5.0.0.beta4
v5.1.0.beta1
v6.*
v6.0.0.beta1
v6.0.0.beta2
v6.1.0.rc1
v6.1.0.rc2
v6.1.1
v6.1.2
v6.1.3
v6.1.3.1