What’s Vulnerable › Vulnerabilities

CVE-2018-16470

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-13 · updated 2026-06-17
• Weakness: CWE-400

Description

There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.

Affected products

• Rack Project Rack: 2.0.4, 2.0.5

References

• https://access.redhat.com/errata/RHSA-2019:3172
• https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ
• https://access.redhat.com/errata/RHSA-2019:3172
• https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ

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