{"answers":{"affected":"10 open source packages ship an affected version, including org.apache.tomcat:tomcat. It affects 15 products.","exploited":"There is no known exploitation of CVE-2016-0762 in the wild and no public exploit code.","fix":"Upgrade org.apache.tomcat:tomcat to a fixed version for your release line: 6.0.46, 7.0.72, 8.0.37 or 8.5.5.","what":"CVE-2016-0762 is a medium-severity vulnerability in Apache Tomcat, published on 10 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-0762 and fix it if it is affected.\n\nWhat it is: CVE-2016-0762 is a medium-severity vulnerability in Apache Tomcat, published on 10 Aug 2017. 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-2016-0762 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.tomcat:tomcat (Maven): affected from 6.0.0; fixed in 6.0.46\n- org.apache.tomcat:tomcat (Maven): affected from 6.0.0; fixed in 6.0.46\n- org.apache.tomcat:tomcat (Maven): affected from 7.0.0; fixed in 7.0.72\n- org.apache.tomcat:tomcat (Maven): affected from 7.0.0; fixed in 7.0.72\n- org.apache.tomcat:tomcat (Maven): affected from 8.0.0.RC1; fixed in 8.0.37\n- org.apache.tomcat:tomcat (Maven): affected from 8.0.0.RC1; fixed in 8.0.37\n- org.apache.tomcat:tomcat (Maven): affected from 8.5.0; fixed in 8.5.5\n- org.apache.tomcat:tomcat (Maven): affected from 8.5.0; fixed in 8.5.5\n- org.apache.tomcat:tomcat (Maven): affected from 9.0.0M1; fixed in 9.0.0.M10\n- org.apache.tomcat:tomcat (Maven): affected from 9.0.0M1; fixed in 9.0.0.M10\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-2016-0762/ (Markdown: https://insights.sbomify.com/CVE-2016-0762/index.md)","id":"CVE-2016-0762","markdown":"https://insights.sbomify.com/CVE-2016-0762/index.md","name":"CVE-2016-0762","record":{"aliases":["GHSA-wxcp-f2c8-x6xv","UBUNTU-CVE-2016-0762"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Tomcat","requires_auth":"none","summary":"Attackers can determine valid usernames via timing attacks in Apache Tomcat Realm implementations, potentially aiding further authentication bypass attempts.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"tomcat","vendor":"apache"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"oncommand_insight","vendor":"netapp"},{"product":"oncommand_shift","vendor":"netapp"},{"product":"snap_creator_framework","vendor":"netapp"},{"product":"communications_diameter_signaling_router","vendor":"oracle"},{"product":"tekelec_platform_distribution","vendor":"oracle"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_eus","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"},{"product":"jboss_enterprise_web_server","vendor":"redhat"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"}],"description":"The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.","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":"Observable Discrepancy in Apache Tomcat","id":"CVE-2016-0762","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"apache:tomcat","products":["apache:tomcat","canonical:ubuntu_linux","debian:debian_linux","netapp:oncommand_insight","netapp:oncommand_shift","oracle:communications_diameter_signaling_router","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation"],"type":"information_disclosure","year":"2016"},"n_packages":10,"n_references":24,"next":{"headline":"Improper Verification of Source of a Communication Channel in Apache Tomcat","id":"CVE-2016-0763"},"packages":[{"ecosystem":"Maven","fixed":["6.0.46"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":null,"source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["6.0.46"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["7.0.72"],"introduced":["7.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":null,"source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["7.0.72"],"introduced":["7.0.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["8.0.37"],"introduced":["8.0.0.RC1"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":null,"source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["8.0.37"],"introduced":["8.0.0.RC1"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["8.5.5"],"introduced":["8.5.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":null,"source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["8.5.5"],"introduced":["8.5.0"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["9.0.0.M10"],"introduced":["9.0.0M1"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":null,"source":"GHSA-wxcp-f2c8-x6xv"},{"ecosystem":"Maven","fixed":["9.0.0.M10"],"introduced":["9.0.0M1"],"last_affected":[],"package":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","source":"GHSA-wxcp-f2c8-x6xv"}],"prev":{"headline":"Path traversal in Cloud Foundry","id":"CVE-2016-0761"},"products":["Apache Tomcat"],"published":"2017-08-10","related":[{"cvss_score":10,"headline":"Apache Tomcat Path Equivalence","id":"CVE-2025-24813","kev_date_added":"2025-04-01","published":"2025-03-10"},{"cvss_score":9.8,"headline":"Apache Tomcat Remote Code Execution","id":"CVE-2016-8735","kev_date_added":"2023-05-12","published":"2017-04-06"},{"cvss_score":8.1,"headline":"Apache Tomcat Remote Code Execution","id":"CVE-2017-12617","kev_date_added":"2022-03-25","published":"2017-10-03"},{"cvss_score":8.1,"headline":"Apache Tomcat on Windows Remote Code Execution","id":"CVE-2017-12615","kev_date_added":"2022-03-25","published":"2017-09-19"},{"cvss_score":7.5,"headline":"Apache Tomcat Missing Encryption of Sensitive Data","id":"CVE-2026-34486","kev_date_added":"2026-08-04","published":"2026-04-09"},{"cvss_score":9.8,"headline":"Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete","id":"CVE-2026-65637","kev_date_added":null,"published":"2026-08-25"},{"cvss_score":9.8,"headline":"Apache Tomcat: Limited replay attack possible with DIGEST authentication","id":"CVE-2026-65905","kev_date_added":null,"published":"2026-08-25"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["Apache Software Foundation"]},"summary":"Attackers can determine valid usernames via timing attacks in Apache Tomcat Realm implementations, potentially aiding further authentication bypass attempts.","url":"https://insights.sbomify.com/CVE-2016-0762/"}