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Rack

55 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we tRack for Rack, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

Rack CVEs per month

Dec 2024 to Nov 2026. Point at a month, or focus the strip and use the arrow keys.
Rack CVEs per month
MonthCVEs
2024-120
2025-011
2025-021
2025-032
2025-040
2025-053
2025-061
2025-070
2025-080
2025-091
2025-105
2025-110
2025-120
2026-010
2026-022
2026-030
2026-0413
2026-050
2026-060
2026-070
2026-080
2026-090
2026-100
2026-114

Severity

How the 55 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical12%
  • High2138%
  • Medium3156%
  • Low24%

Latest CVEs

The 15 most recently published vulnerabilities affecting Rack.

  1. CVE-2026-125111Rack: Multipart parsing allows DoS via unbounded scan buffer growth7.5
  2. CVE-2026-125110Rack: Rack::Static header_rules bypass via dot-segment normalization mismatch5.3
  3. CVE-2026-125109Rack: Rack::Request#host_with_port (and #base_url / #url) return the raw invalid Host header — incomplete fix of CVE-2026-348354.8
  4. CVE-2026-125108Rack: Multipart boundary ambiguity guard in Rack::Multipart::Parser can be bypassed with a quoted boundary value, allowing WAF bypass3.7
  5. CVE-2026-26962Rack: Header injection in multipart requests4.8
  6. CVE-2026-34835Rack: `Rack::Request` accepts invalid Host characters, enabling host allowlist bypass.4.8
  7. CVE-2026-34827Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser7.5
  8. CVE-2026-32762Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing4.8
  9. CVE-2026-34830Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx5.9
  10. CVE-2026-34829Rack: Denial of Service via Unbounded Multipart File Upload Without Content-Length7.5
  11. CVE-2026-34826Rack: Unbounded Range Count in get_byte_ranges Enables DoS5.3
  12. CVE-2026-34786Rack: Rack::Static header_rules bypass via URL-encoded paths5.3
  13. CVE-2026-34785Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching7.5
  14. CVE-2026-34763Rack: Rack::Directory info disclosure and DoS via unescaped regex interpolation5.3
  15. CVE-2026-34831Rack: Content-Length mismatch in Rack::Files error responses4.8

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