{"answers":{"affected":"4 open source packages ship an affected version, including com.typesafe.akka:akka-http-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23339 in the wild and no public exploit code.","fix":"Upgrade com.typesafe.akka:akka-http-core to a fixed version for your release line: 10.1.14 or 10.2.4.","what":"CVE-2021-23339 is a medium-severity vulnerability in com.typesafe.akka:akka-http-core, published on 17 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-23339 and fix it if it is affected.\n\nWhat it is: CVE-2021-23339 is a medium-severity vulnerability in com.typesafe.akka:akka-http-core, published on 17 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-23339 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.typesafe.akka:akka-http-core (Maven): affected all versions; fixed in 10.1.14\n- com.typesafe.akka:akka-http-core (Maven): affected all versions; fixed in 10.1.14\n- com.typesafe.akka:akka-http-core (Maven): affected from 10.2.0; fixed in 10.2.4\n- com.typesafe.akka:akka-http-core (Maven): affected from 10.2.0; fixed in 10.2.4\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-2021-23339/ (Markdown: https://insights.sbomify.com/CVE-2021-23339/index.md)","id":"CVE-2021-23339","markdown":"https://insights.sbomify.com/CVE-2021-23339/index.md","name":"CVE-2021-23339","record":{"aliases":["GHSA-2w7w-2j92-44hx","SNYK-JAVA-COMTYPESAFEAKKA-1075043"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Akka HTTP library","requires_auth":"none","summary":"Attackers can exploit HTTP request smuggling in Akka HTTP by sending multiple Transfer-Encoding headers, potentially bypassing security controls.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"akka-http","vendor":"lightbend"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"description":"This affects all versions before 10.1.14 and from 10.2.0 to 10.2.4 of package com.typesafe.akka:akka-http-core. It allows multiple Transfer-Encoding headers.","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":"HTTP Request Smuggling","id":"CVE-2021-23339","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"other","year":"2021"},"n_packages":4,"n_references":2,"next":{"headline":"Local File Inclusion","id":"CVE-2021-23340"},"packages":[{"ecosystem":"Maven","fixed":["10.1.14"],"introduced":["0"],"last_affected":[],"package":"com.typesafe.akka:akka-http-core","purl":null,"source":"GHSA-2w7w-2j92-44hx"},{"ecosystem":"Maven","fixed":["10.1.14"],"introduced":["0"],"last_affected":[],"package":"com.typesafe.akka:akka-http-core","purl":"pkg:maven/com.typesafe.akka/akka-http-core","source":"GHSA-2w7w-2j92-44hx"},{"ecosystem":"Maven","fixed":["10.2.4"],"introduced":["10.2.0"],"last_affected":[],"package":"com.typesafe.akka:akka-http-core","purl":null,"source":"GHSA-2w7w-2j92-44hx"},{"ecosystem":"Maven","fixed":["10.2.4"],"introduced":["10.2.0"],"last_affected":[],"package":"com.typesafe.akka:akka-http-core","purl":"pkg:maven/com.typesafe.akka/akka-http-core","source":"GHSA-2w7w-2j92-44hx"}],"prev":{"headline":"Deserialization of Untrusted Data","id":"CVE-2021-23338"},"products":["com.typesafe.akka:akka-http-core"],"published":"2021-02-17","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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["n/a"]},"summary":"Attackers can exploit HTTP request smuggling in Akka HTTP by sending multiple Transfer-Encoding headers, potentially bypassing security controls.","url":"https://insights.sbomify.com/CVE-2021-23339/"}