CyberRota Analysis
AI-GeneratedThe vulnerability affects Http4s versions prior to 0.23.35 and 1.0.0-M47, allowing unvalidated input to influence cookie attributes such as Domain and Path, potentially leading to cookie scope widening or weakened protections. This could also enable header splitting attacks on permissive backends. Developers using affected versions should prioritize updating to the patched releases to mitigate these risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, ResponseCookie.render writes attacker-influenced name, content, domain, path, and extension values without neutralizing semicolons or control characters. An application that constructs a ResponseCookie from unvalidated input can therefore emit injected cookie attributes such as Domain, Path, or SameSite, widening cookie scope or weakening protections, and control characters may enable header splitting on permissive backends. The patch strips control characters from all five fields and strips semicolons from name, content, domain, and path while retaining the extension delimiter behavior. This issue is fixed in versions 0.23.35 and 1.0.0-M47.