CVEvulnerability
CVE-2026-69215
6.8 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-15
- Last modified
- 2026-09-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- Weaknesses
- CWE-1275, CWE-565
Description
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an attacker-controlled hostname such as evilexample.com when an application using the same jar makes an attacker-influenced outbound request. This exposes session or authentication cookies and can enable hijacking of the application’s outbound sessions. This issue is fixed in versions 0.23.35 and 1.0.0-M47.
Related
References
- https://github.com/http4s/http4s/commit/c0a37f38d5ee2a568ba57bd9da62f8d79b8b1fcc github.com
- https://github.com/http4s/http4s/releases/tag/v0.23.35 github.com
- https://github.com/http4s/http4s/releases/tag/v1.0.0-M47 github.com
- https://github.com/http4s/http4s/security/advisories/GHSA-grh8-3p95-f9rr github.com