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Puma

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

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

Puma CVEs per month

Nov 2024 to Oct 2026. Point at a month, or focus the strip and use the arrow keys.
Puma CVEs per month
MonthCVEs
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-072
2026-080
2026-090
2026-100

Severity

How the 15 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical17%
  • High747%
  • Medium640%
  • Low17%

Latest CVEs

The 15 most recently published vulnerabilities affecting Puma.

  1. CVE-2026-47736Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion7.5
  2. CVE-2026-47737Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections7.5
  3. CVE-2024-45614Header normalization allows for client to clobber proxy set headers in Puma5.4
  4. CVE-2024-21647HTTP Request/Response Smuggling in puma5.9
  5. CVE-2023-40175Inconsistent Interpretation of HTTP Requests in puma7.3
  6. CVE-2022-24790HTTP Request Smuggling in puma9.1
  7. CVE-2022-23634Information Exposure when using Puma with Rails8.0
  8. CVE-2021-41136Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in puma3.7
  9. CVE-2021-29509Keepalive Connections Causing Denial Of Service in puma7.5
  10. CVE-2020-11077HTTP Smuggling via Transfer-Encoding Header in Puma6.8
  11. CVE-2020-11076HTTP Smuggling via Transfer-Encoding Header in Puma7.5
  12. CVE-2020-5249HTTP Response Splitting (Early Hints) in Puma6.5
  13. CVE-2020-5247HTTP Response Splitting in Puma6.5
  14. CVE-2019-16770Potential DOS attack in Puma5.3
  15. CVE-2006-4713PHP remote file inclusion vulnerability in config.php in PSYWERKS PUMA 1.0 RC2 allows remote attackers to execute arbitrary PHP code via a URL in the fpath parameter.7.5

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