What’s Vulnerable › Vulnerabilities

CVE-2024-35231: rack-contrib vulnerable to Denial of Service due to the unconstrained value of the incoming "profiler_runs" parameter

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-27 · updated 2026-06-17
• Weakness: CWE-770

Description

rack-contrib provides contributed rack middleware and utilities for Rack, a Ruby web server interface. Versions of rack-contrib prior to 2.5.0 are vulnerable to denial of service due to the fact that the user controlled data `profiler_runs` was not constrained to any limitation. This would lead to allocating resources on the server side with no limitation and a potential denial of service by remotely user-controlled data. Version 2.5.0 contains a patch for the issue.

Affected products

• rack-contrib: through 2.4

References

• https://github.com/rack/rack-contrib/commit/0eec2a9836329051c6742549e65a94a4c24fe6f7
• https://github.com/rack/rack-contrib/security/advisories/GHSA-8c8q-2xw3-j869
• https://github.com/rack/rack-contrib/commit/0eec2a9836329051c6742549e65a94a4c24fe6f7
• https://github.com/rack/rack-contrib/security/advisories/GHSA-8c8q-2xw3-j869

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