Is org.http4s:http4s-ember-core_2.12 affected by CVE-2025-59822?

Maven org.http4s:http4s-ember-core_2.12 is affected in <0.23.31.

Is CVE-2025-59822 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2025-59822

Q: Is CVE-2025-59822 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Maven · org.http4s:http4s-ember-core_2.12 • Maven · org.http4s:http4s-ember-core_2.13 • Maven · org.http4s:http4s-ember-core_3

Summary

Http4s vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section

Severity: medium
EPSS: 0.3% (p27)
Also known as: GHSA-wcwh-7gfw-5wrr#org.http4s:http4s-ember-core_2.12, GHSA-wcwh-7gfw-5wrr#org.http4s:http4s-ember-core_2.13, GHSA-wcwh-7gfw-5wrr#org.http4s:http4s-ember-core_3
Published: 2025-09-23

References

https://github.com/http4s/http4s/security/advisories/GHSA-wcwh-7gfw-5wrr
https://nvd.nist.gov/vuln/detail/CVE-2025-59822
https://github.com/http4s/http4s/commit/dd518f7c967e5165813b8d4a48a82b8fab852d41

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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.