Vulnerability Description
The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rubyonrails | Rails | >= 6.0.0, < 6.0.3.7 |
Related Weaknesses (CWE)
References
- https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnExploitMitigationPatch
- https://hackerone.com/reports/1138654Permissions RequiredThird Party Advisory
- https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnExploitMitigationPatch
- https://hackerone.com/reports/1138654Permissions RequiredThird Party Advisory
FAQ
What is CVE-2021-22902?
CVE-2021-22902 is a vulnerability with a CVSS score of 7.5 (HIGH). The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Ac...
How severe is CVE-2021-22902?
CVE-2021-22902 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-22902?
Check the references section above for vendor advisories and patch information. Affected products include: Rubyonrails Rails.