Vulnerability Description
http4k (Maven artifact org.http4k:http4k-core) before 6.48.0.0, 5.42.0.0, and 4.51.0.0 ships a BasicCookieStorage (client-side cookie store used by ClientFilters.Cookies) that does not enforce RFC 6265 scoping rules for the cookie domain, path, and Secure attributes. When a single BasicCookieStorage instance is used to talk to more than one origin or scheme, cookies stored for one origin can be sent to other origins, and cookies marked Secure can be sent over plain HTTP, potentially disclosing session cookies or other sensitive values to unauthorized hosts or network observers. Clients that use a storage instance for a single origin are not affected.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/http4k/http4k/commit/6a9b44d743
- https://github.com/http4k/http4k/security/advisories/GHSA-pr33-38xx-6r26
- https://www.vulncheck.com/advisories/http4k-before-6.48.0.0-cookie-scoping-bypas
FAQ
What is CVE-2026-100725?
CVE-2026-100725 is a vulnerability with a CVSS score of 6.5 (MEDIUM). http4k (Maven artifact org.http4k:http4k-core) before 6.48.0.0, 5.42.0.0, and 4.51.0.0 ships a BasicCookieStorage (client-side cookie store used by ClientFilters.Cookies) that does not enforce RFC 626...
How severe is CVE-2026-100725?
CVE-2026-100725 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100725?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.