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Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing
Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing
Affected packages
- rack— before 2.2.20
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-6xw4-3v39-52mm
- https://nvd.nist.gov/vuln/detail/CVE-2025-61919
- https://github.com/rack/rack/commit/4e2c903991a790ee211a3021808ff4fd6fe82881
- https://github.com/rack/rack/commit/cbd541e8a3d0c5830a3c9a30d3718ce2e124f9db
- https://github.com/rack/rack/commit/e179614c4a653283286f5f046428cbb85f21146f
- https://github.com/rack/rack
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-61919.yml
Structured record: https://osv.dev/vulnerability/GHSA-6xw4-3v39-52mm
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