{"answers":{"affected":"13 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core, tomcat and org.apache.tomcat:tomcat-coyote. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-65637 in the wild and no public exploit code.","fix":"Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 10.1.59, 11.0.25 or 9.0.121.","what":"CVE-2026-65637 is a critical vulnerability in Apache Tomcat, published on 25 Aug 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-2026-65637 and fix it if it is affected.\n\nWhat it is: CVE-2026-65637 is a critical vulnerability in Apache Tomcat, published on 25 Aug 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-2026-65637 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 10.1.53; fixed in 10.1.59\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 10.1.53; fixed in 10.1.59\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 11.0.20; fixed in 11.0.25\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 11.0.20; fixed in 11.0.25\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.115; fixed in 9.0.121\n- org.apache.tomcat.embed:tomcat-embed-core (Maven): affected from 9.0.115; fixed in 9.0.121\n- tomcat (Bitnami): affected from 9.0.115; fixed in 9.0.121, 10.1.58, 11.0.25\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 10.1.53; fixed in 10.1.59\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 10.1.53; fixed in 10.1.59\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 11.0.20; fixed in 11.0.25\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 11.0.20; fixed in 11.0.25\n- org.apache.tomcat:tomcat-coyote (Maven): affected from 9.0.115; fixed in 9.0.121\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-2026-65637/ (Markdown: https://insights.sbomify.com/CVE-2026-65637/index.md)","id":"CVE-2026-65637","markdown":"https://insights.sbomify.com/CVE-2026-65637/index.md","name":"CVE-2026-65637","record":{"aliases":["BIT-tomcat-2026-65637","DEBIAN-CVE-2026-65637","GHSA-f525-44xv-f2qj","MINI-3q2f-hhhj-hgmh","MINI-q9h5-f9vm-mv9x","MINI-vjj9-fvv5-7j54","MINI-w4f2-3wv7-9jx6","UBUNTU-CVE-2026-65637"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache Tomcat","requires_auth":"none","summary":"Attackers can bypass strict SNI validation in Apache Tomcat via HTTP/2 requests, potentially undermining TLS security controls.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"tomcat","vendor":"apache"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Improper Input Validation vulnerability in Apache Tomcat due to incomplete fix for CVE-2026-32990.\n\nThis issue affects Apache Tomcat: from 11.0.20 through 11.0.24, from 10.1.53 through 10.1.57, from 9.0.115 through 9.0.120.\n\nUsers are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.","ecosystems":["Bitnami","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":"Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete","id":"CVE-2026-65637","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:tomcat","products":["apache:tomcat"],"type":"security_feature_bypass","year":"2026"},"n_packages":13,"n_references":1,"next":{"headline":"Improper escaping of a request URL in ConfigServer Security \u0026 Firewall allows an unauthenticated remote attacker to execute arbitrary comman","id":"CVE-2026-65638"},"packages":[{"ecosystem":"Bitnami","fixed":["9.0.121","10.1.58","11.0.25"],"introduced":["9.0.115","10.1.53","11.0.20"],"last_affected":[],"package":"tomcat","purl":"pkg:bitnami/tomcat","source":"BIT-tomcat-2026-65637"},{"ecosystem":"Maven","fixed":["10.1.59"],"introduced":["10.1.53"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["10.1.59"],"introduced":["10.1.53"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["11.0.25"],"introduced":["11.0.20"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["11.0.25"],"introduced":["11.0.20"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["9.0.121"],"introduced":["9.0.115"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["9.0.121"],"introduced":["9.0.115"],"last_affected":[],"package":"org.apache.tomcat.embed:tomcat-embed-core","purl":"pkg:maven/org.apache.tomcat.embed/tomcat-embed-core","source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["10.1.59"],"introduced":["10.1.53"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["10.1.59"],"introduced":["10.1.53"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["11.0.25"],"introduced":["11.0.20"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["11.0.25"],"introduced":["11.0.20"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["9.0.121"],"introduced":["9.0.115"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":null,"source":"GHSA-f525-44xv-f2qj"},{"ecosystem":"Maven","fixed":["9.0.121"],"introduced":["9.0.115"],"last_affected":[],"package":"org.apache.tomcat:tomcat-coyote","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote","source":"GHSA-f525-44xv-f2qj"}],"prev":{"headline":"YAML injection via unescaped newlines in ymlr document comments","id":"CVE-2026-65636"},"products":["Apache Tomcat"],"published":"2026-08-25","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: Limited replay attack possible with DIGEST authentication","id":"CVE-2026-65905","kev_date_added":null,"published":"2026-08-25"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"total"},"state":"PUBLISHED","updated":"2026-08-26","vendors":["Apache Software Foundation"]},"summary":"Attackers can bypass strict SNI validation in Apache Tomcat via HTTP/2 requests, potentially undermining TLS security controls.","url":"https://insights.sbomify.com/CVE-2026-65637/"}