{"answers":{"affected":"10 open source packages ship an affected version, including org.http4s:http4s-ember-core_2.13, org.http4s:http4s-ember-core_2.12 and org.http4s:http4s-ember-core_3.","exploited":"There is no known exploitation of CVE-2026-69216 in the wild and no public exploit code.","fix":"Upgrade org.http4s:http4s-ember-core_2.13 to a fixed version for your release line: 0.23.35 or 1.0.0-M47.","what":"CVE-2026-69216 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-2026-69216 and fix it if it is affected.\n\nWhat it is: CVE-2026-69216 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-2026-69216 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.http4s:http4s-ember-core_2.13 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_2.13 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_2.13 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-ember-core_2.13 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-ember-core_2.12 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_2.12 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_3 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_3 (Maven): affected all versions; fixed in 0.23.35\n- org.http4s:http4s-ember-core_3 (Maven): affected from 1.0.0-M1; fixed in 1.0.0-M47\n- org.http4s:http4s-ember-core_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-2026-69216/ (Markdown: https://insights.sbomify.com/CVE-2026-69216/index.md)","id":"CVE-2026-69216","markdown":"https://insights.sbomify.com/CVE-2026-69216/index.md","name":"CVE-2026-69216","record":{"aliases":["GHSA-jrpm-956j-96jg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Scala HTTP library","requires_auth":"none","summary":"An attacker can exploit lenient chunk parsing in Http4s Ember to perform request smuggling, bypassing intermediary controls and poisoning caches.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s chunk decoder trims the chunk-size token and accepts leading plus or minus signs instead of requiring one or more hexadecimal digits followed by the required CRLF. When an intermediary forwards chunked data without re-encoding and interprets malformed chunk boundaries differently, an unauthenticated attacker can create TE.TE request smuggling that bypasses intermediary controls, poisons caches, or hijacks the request queue. The same response-path leniency can enable response smuggling against an ember-client used as a gateway when the upstream is malicious or compromised. 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: Ember chunk parser lenience (TE.TE request smuggling)","id":"CVE-2026-69216","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"other","year":"2026"},"n_packages":10,"n_references":4,"next":{"headline":"Http4s: Ember Server accepts duplicate Content-Length headers","id":"CVE-2026-69217"},"packages":[{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.12","purl":null,"source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.12","purl":"pkg:maven/org.http4s/http4s-ember-core_2.12","source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.13","purl":null,"source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.13","purl":"pkg:maven/org.http4s/http4s-ember-core_2.13","source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.13","purl":null,"source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-ember-core_2.13","purl":"pkg:maven/org.http4s/http4s-ember-core_2.13","source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_3","purl":null,"source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["0.23.35"],"introduced":["0"],"last_affected":[],"package":"org.http4s:http4s-ember-core_3","purl":"pkg:maven/org.http4s/http4s-ember-core_3","source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-ember-core_3","purl":null,"source":"GHSA-jrpm-956j-96jg"},{"ecosystem":"Maven","fixed":["1.0.0-M47"],"introduced":["1.0.0-M1"],"last_affected":[],"package":"org.http4s:http4s-ember-core_3","purl":"pkg:maven/org.http4s/http4s-ember-core_3","source":"GHSA-jrpm-956j-96jg"}],"prev":{"headline":"Http4s: CookieJar middleware matches by substring, leaking cookies cross-origin","id":"CVE-2026-69215"},"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":"An attacker can exploit lenient chunk parsing in Http4s Ember to perform request smuggling, bypassing intermediary controls and poisoning caches.","url":"https://insights.sbomify.com/CVE-2026-69216/"}