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Rack has an unsafe default in Rack::QueryParser allows params_limit bypass via semicolon-separated parameters
Rack has an unsafe default in Rack::QueryParser allows params_limit bypass via semicolon-separated parameters
Affected packages
- rack— before 2.2.18
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/rack/rack/security/advisories/GHSA-625h-95r8-8xpm
- https://nvd.nist.gov/vuln/detail/CVE-2025-59830
- https://github.com/rack/rack/commit/54e4ffdd5affebcb0c015cc6ae74635c0831ed71
- https://github.com/rack/rack
Structured record: https://osv.dev/vulnerability/GHSA-625h-95r8-8xpm
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