Is puma affected by CVE-2019-16770?

RubyGems puma is affected in =4.0.0 <4.3.1.

Is CVE-2019-16770 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 1.9%.

medium

CVE-2019-16770

Q: Is CVE-2019-16770 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 1.9%.

RubyGems · puma

Summary

A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack

Severity: medium
EPSS: 1.9% (p77)
Also known as: GHSA-7xx3-m584-x994
Published: 2019-12-05

References

https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994
https://nvd.nist.gov/vuln/detail/CVE-2019-16770
https://github.com/advisories/GHSA-7xx3-m584-x994

Related advisories

CVE-2023-40175 — critical · RubyGems/puma
CVE-2022-24790 — critical · RubyGems/puma
CVE-2026-47737 — high · RubyGems/puma
CVE-2026-47736 — high · RubyGems/puma
CVE-2022-23634 — high · RubyGems/puma
CVE-2021-29509 — high · RubyGems/puma
CVE-2020-11076 — high · RubyGems/puma
CVE-2024-45614 — medium · RubyGems/puma

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.