{"answers":{"affected":"10 open source packages ship an affected version, including org.http4s:http4s-client_2.13, org.http4s:http4s-client_2.12 and org.http4s:http4s-client_3.","exploited":"There is no known exploitation of CVE-2026-69215 in the wild and no public exploit code.","fix":"Upgrade org.http4s:http4s-client_2.13 to a fixed version for your release line: 0.23.35 or 1.0.0-M47.","what":"CVE-2026-69215 is a medium-severity vulnerability in http4s, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-69215 and fix it if it is affected.\n\nWhat it is: CVE-2026-69215 is a medium-severity vulnerability in http4s, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-69215 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.http4s:http4s-client_2.13 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_2.13 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_2.13 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-client_2.13 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-client_2.12 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_2.12 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_3 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_3 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-client_3 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-client_3 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-69215/ (Markdown: https://insights.sbomify.com/CVE-2026-69215/index.md)","id":"CVE-2026-69215","markdown":"https://insights.sbomify.com/CVE-2026-69215/index.md","name":"CVE-2026-69215","record":{"aliases":["GHSA-grh8-3p95-f9rr"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Scala HTTP library","requires_auth":"none","summary":"Http4s library leaks cookies to attacker-controlled domains due to improper substring matching, enabling session hijacking.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-565","name":"Reliance on Cookies without Validation and Integrity Checking"},{"id":"CWE-1275","name":"Sensitive Cookie with Improper SameSite Attribute"}],"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.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Http4s: CookieJar middleware matches by substring, leaking cookies cross-origin","id":"CVE-2026-69215","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":10,"n_references":4,"next":{"headline":"Http4s: Ember chunk parser lenience (TE.TE request smuggling)","id":"CVE-2026-69216"},"packages":[{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_2.12","purl":null,"source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_2.12","purl":"pkg:maven/org.http4s/http4s-client_2.12","source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_2.13","purl":null,"source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_2.13","purl":"pkg:maven/org.http4s/http4s-client_2.13","source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-client_2.13","purl":null,"source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-client_2.13","purl":"pkg:maven/org.http4s/http4s-client_2.13","source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_3","purl":null,"source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-client_3","purl":"pkg:maven/org.http4s/http4s-client_3","source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-client_3","purl":null,"source":"GHSA-grh8-3p95-f9rr"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-client_3","purl":"pkg:maven/org.http4s/http4s-client_3","source":"GHSA-grh8-3p95-f9rr"}],"prev":{"headline":"Http4s: CookieJar middleware accepts arbitrary Set-Cookie domain","id":"CVE-2026-69214"},"products":["http4s"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["http4s"]},"summary":"Http4s library leaks cookies to attacker-controlled domains due to improper substring matching, enabling session hijacking.","url":"https://insights.sbomify.com/CVE-2026-69215/"}