Resource exhaustion in Rubyonrails Rails
CVE-2021-22904
The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses `…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.048 (91.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Rubyonrails Rails
- N/a Https://github.com/rails/rails — versions Fixed in 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (Exploit, Patch, x_refsource_MISC, Mitigation, Vendor Advisory)
- support@hackerone.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22904?
- CVE-2021-22904 is a high-severity vulnerability in Rubyonrails Rails, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-06-11.
- How severe is CVE-2021-22904?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-22904 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.