Rack
51 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
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 1 |
| 2025-02 | 1 |
| 2025-03 | 2 |
| 2025-04 | 0 |
| 2025-05 | 3 |
| 2025-06 | 1 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 1 |
| 2025-10 | 5 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 2 |
| 2026-03 | 0 |
| 2026-04 | 13 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 0 |
Severity
How the 51 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical1
- High20
- Medium29
- Low1
Latest CVEs
The 15 most recently published vulnerabilities affecting Rack.
- CVE-2026-26962Rack: Header injection in multipart requests4.8
- CVE-2026-34835Rack: `Rack::Request` accepts invalid Host characters, enabling host allowlist bypass.4.8
- CVE-2026-34827Rack: Algorithmic-Complexity DoS in Rack::Multipart::Parser7.5
- CVE-2026-32762Rack: Forwarded Header semicolon injection enables Host and Scheme spoofing4.8
- CVE-2026-34830Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx5.9
- CVE-2026-34829Rack: Denial of Service via Unbounded Multipart File Upload Without Content-Length7.5
- CVE-2026-34826Rack: Unbounded Range Count in get_byte_ranges Enables DoS5.3
- CVE-2026-34786Rack: Rack::Static header_rules bypass via URL-encoded paths5.3
- CVE-2026-34785Rack: Local file inclusion in `Rack::Static` via URL Prefix Matching7.5
- CVE-2026-34763Rack: Rack::Directory info disclosure and DoS via unescaped regex interpolation5.3
- CVE-2026-34831Rack: Content-Length mismatch in Rack::Files error responses4.8
- CVE-2026-26961Rack: Multipart Boundary Parsing Ambiguity allowing WAF Bypass3.7
- CVE-2026-34230Rack: Quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header5.3
- CVE-2026-25500Rack's Stored XSS in Rack::Directory via javascript: filenames rendered into anchor href5.4
- CVE-2026-22860Rack has a Directory Traversal via Rack:Directory7.5
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