Is cgi affected by CVE-2025-27219?

RubyGems cgi is affected in =0.3.6 =0.4.0 <0.4.2.

Is CVE-2025-27219 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.8%.

medium

CVE-2025-27219

Q: Is CVE-2025-27219 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.8%.

RubyGems · cgi

Summary

CGI has Denial of Service (DoS) potential in Cookie.parse

Severity: medium
EPSS: 0.8% (p51)
Also known as: GHSA-gh9q-2xrm-x6qv
Published: 2025-03-03

References

https://nvd.nist.gov/vuln/detail/CVE-2025-27219
https://github.com/ruby/cgi/pull/52
https://github.com/ruby/cgi/pull/53

Related advisories

CVE-2021-41816 — critical · RubyGems/cgi
CVE-2021-33621 — high · RubyGems/cgi
CVE-2021-41819 — high · RubyGems/cgi
CVE-2025-27220 — medium · RubyGems/cgi

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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.