{"answers":{"affected":"2 open source packages ship an affected version, including org.eclipse.jetty:jetty-webapp. It affects 17 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-28164 exists.","fix":"Upgrade org.eclipse.jetty:jetty-webapp to 9.4.39 or later.","what":"CVE-2021-28164 is a medium-severity path traversal vulnerability in Eclipse Jetty, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28164 and fix it if it is affected.\n\nWhat it is: CVE-2021-28164 is a medium-severity path traversal vulnerability in Eclipse Jetty, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-28164 exists.\n\nAffected packages and fixed versions:\n- org.eclipse.jetty:jetty-webapp (Maven): affected from 9.4.37; fixed in 9.4.39\n- org.eclipse.jetty:jetty-webapp (Maven): affected from 9.4.37; fixed in 9.4.39\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-2021-28164/ (Markdown: https://insights.sbomify.com/CVE-2021-28164/index.md)","id":"CVE-2021-28164","markdown":"https://insights.sbomify.com/CVE-2021-28164/index.md","name":"CVE-2021-28164","record":{"aliases":["DEBIAN-CVE-2021-28164","GHSA-v7ff-8wcx-gmc5","UBUNTU-CVE-2021-28164"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Jetty web server","requires_auth":"none","summary":"Attackers can access protected WEB-INF files via encoded path traversal, exposing sensitive application configuration data.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"jetty","vendor":"eclipse"},{"product":"cloud_manager","vendor":"netapp"},{"product":"e-series_performance_analyzer","vendor":"netapp"},{"product":"e-series_santricity_os_controller","vendor":"netapp"},{"product":"e-series_santricity_web_services","vendor":"netapp"},{"product":"element_plug-in_for_vcenter_server","vendor":"netapp"},{"product":"santricity_cloud_connector","vendor":"netapp"},{"product":"snapcenter","vendor":"netapp"},{"product":"snapcenter_plug-in","vendor":"netapp"},{"product":"storage_replication_adapter_for_clustered_data_ontap","vendor":"netapp"},{"product":"vasa_provider_for_clustered_data_ontap","vendor":"netapp"},{"product":"virtual_storage_console","vendor":"netapp"},{"product":"autovue_for_agile_product_lifecycle_management","vendor":"oracle"},{"product":"banking_apis","vendor":"oracle"},{"product":"banking_digital_experience","vendor":"oracle"},{"product":"communications_session_route_manager","vendor":"oracle"},{"product":"siebel_core_-_automation","vendor":"oracle"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-551","name":"Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.","ecosystems":["Maven"],"exploits":{"exploitdb":1,"first_seen":"2021-07-15","github_poc":2,"max_poc_stars":0,"metasploit":1,"nuclei":1,"refs":[{"date":"2021-07-15","kind":"metasploit","ref":"auxiliary/gather/jetty_web_inf_disclosure","stars":null,"title":"Jetty WEB-INF File Disclosure"},{"date":"2021-10-22","kind":"exploitdb","ref":"50438","stars":null,"title":"Jetty 9.4.37.v20210219 - Information Disclosure"},{"date":"2023-10-31T14:59:29Z","kind":"github_poc","ref":"https://github.com/jammy0903/-jettyCVE-2021-28164-","stars":0,"title":"jetty /CVE-2021-28164/분석 및 결과"},{"date":"2026-10-08T21:30:39Z","kind":"github_poc","ref":"https://github.com/CyberCTF/vulhub-jetty-cve-2021-28164","stars":0,"title":"Vulhub jetty/CVE-2021-28164: Jetty Ambiguous Path Information Disclosure (CVE-2021-28164), run with Isoloom"},{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-28164.yaml","stars":null,"title":"Eclipse Jetty - Information Disclosure"}],"tier":"weaponised"},"has_fix":true,"headline":"Authorization Before Parsing and Canonicalization in jetty","id":"CVE-2021-28164","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"eclipse:jetty","products":["eclipse:jetty","netapp:e-series_performance_analyzer","netapp:e-series_santricity_os_controller","netapp:e-series_santricity_web_services","netapp:snapcenter","netapp:storage_replication_adapter_for_clustered_data_ontap","netapp:vasa_provider_for_clustered_data_ontap","netapp:virtual_storage_console","oracle:communications_session_route_manager"],"type":"path_traversal","year":"2021"},"n_packages":2,"n_references":25,"next":{"headline":"Jetty vulnerable to incorrect handling of invalid large TLS frame, exhausting CPU resources","id":"CVE-2021-28165"},"packages":[{"ecosystem":"Maven","fixed":["9.4.39"],"introduced":["9.4.37"],"last_affected":[],"package":"org.eclipse.jetty:jetty-webapp","purl":null,"source":"GHSA-v7ff-8wcx-gmc5"},{"ecosystem":"Maven","fixed":["9.4.39"],"introduced":["9.4.37"],"last_affected":[],"package":"org.eclipse.jetty:jetty-webapp","purl":"pkg:maven/org.eclipse.jetty/jetty-webapp","source":"GHSA-v7ff-8wcx-gmc5"}],"prev":{"headline":"Directory exposure in jetty","id":"CVE-2021-28163"},"products":["Eclipse Jetty"],"published":"2021-04-01","related":[{"cvss_score":9.8,"headline":"Jetty contains an alias issue that could allow unauthenticated remote code execution due to specially crafted request","id":"CVE-2016-4800","kev_date_added":null,"published":"2017-04-13"},{"cvss_score":9.4,"headline":"Operation on a Resource after Expiration or Release in Jetty Server","id":"CVE-2019-17638","kev_date_added":null,"published":"2020-07-09"},{"cvss_score":8.8,"headline":"Access and integrity issue within Eclipse Jetty","id":"CVE-2018-12538","kev_date_added":null,"published":"2018-06-22"},{"cvss_score":8.7,"headline":"Digest authentication lossy encoding","id":"CVE-2026-10050","kev_date_added":null,"published":"2026-08-04"},{"cvss_score":7.7,"headline":"MadeYouReset HTTP/2 vulnerability","id":"CVE-2025-5115","kev_date_added":null,"published":"2025-08-20"},{"cvss_score":7.5,"headline":"Eclipse Jetty: DoS attack triggering OutOfMemory with 100-Continue requests","id":"CVE-2024-7708","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":7.5,"headline":"The Eclipse Jetty Server Artifact has a Gzip request memory leak","id":"CVE-2026-1605","kev_date_added":null,"published":"2026-03-05"}],"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)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["The Eclipse Foundation"]},"summary":"Attackers can access protected WEB-INF files via encoded path traversal, exposing sensitive application configuration data.","url":"https://insights.sbomify.com/CVE-2021-28164/"}