{"answers":{"affected":"6 open source packages ship an affected version, including org.springframework.webflow:spring-webflow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-40986 in the wild and no public exploit code.","fix":"Upgrade org.springframework.webflow:spring-webflow to a fixed version for your release line: 3.0.2 or 4.0.1.","what":"CVE-2026-40986 is a medium-severity cross-site scripting vulnerability in Spring Web Flow, published on 11 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-40986 and fix it if it is affected.\n\nWhat it is: CVE-2026-40986 is a medium-severity cross-site scripting vulnerability in Spring Web Flow, published on 11 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-40986 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.springframework.webflow:spring-webflow (Maven): affected all versions up to 2.5.1; no fix listed\n- org.springframework.webflow:spring-webflow (Maven): affected all versions up to 2.5.1; no fix listed\n- org.springframework.webflow:spring-webflow (Maven): affected from 3.0.0; fixed in 3.0.2\n- org.springframework.webflow:spring-webflow (Maven): affected from 3.0.0; fixed in 3.0.2\n- org.springframework.webflow:spring-webflow (Maven): affected from 4.0.0; fixed in 4.0.1\n- org.springframework.webflow:spring-webflow (Maven): affected from 4.0.0; fixed in 4.0.1\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-2026-40986/ (Markdown: https://insights.sbomify.com/CVE-2026-40986/index.md)","id":"CVE-2026-40986","markdown":"https://insights.sbomify.com/CVE-2026-40986/index.md","name":"CVE-2026-40986","record":{"aliases":["GHSA-hw5c-xm3c-v96w","ROOT-APP-MAVEN-CVE-2026-40986"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Spring Web Flow library","requires_auth":"low_privilege","summary":"Attackers can execute scripts in user browsers via reflected input in error responses rendered as HTML by Spring Web Flow's RemotingHandler.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"spring_web_flow","vendor":"broadcom"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not \"text/html\", which can result in a scripting attack in the user's browser if the error response from the server contains error details with input reflected from an attacker.\n\nAffected versions:\nSpring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.","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":"Spring Web Flow JS RemotingHandler renders non-HTML Response as HTML","id":"CVE-2026-40986","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"Spring Integration File Support: FTP/SFTP/SMB server can write arbitrary files anywhere on the client filesystem","id":"CVE-2026-40987"},"packages":[{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["2.5.1"],"package":"org.springframework.webflow:spring-webflow","purl":null,"source":"GHSA-hw5c-xm3c-v96w"},{"ecosystem":"Maven","fixed":[],"introduced":["0"],"last_affected":["2.5.1"],"package":"org.springframework.webflow:spring-webflow","purl":"pkg:maven/org.springframework.webflow/spring-webflow","source":"GHSA-hw5c-xm3c-v96w"},{"ecosystem":"Maven","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"org.springframework.webflow:spring-webflow","purl":null,"source":"GHSA-hw5c-xm3c-v96w"},{"ecosystem":"Maven","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"org.springframework.webflow:spring-webflow","purl":"pkg:maven/org.springframework.webflow/spring-webflow","source":"GHSA-hw5c-xm3c-v96w"},{"ecosystem":"Maven","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"org.springframework.webflow:spring-webflow","purl":null,"source":"GHSA-hw5c-xm3c-v96w"},{"ecosystem":"Maven","fixed":["4.0.1"],"introduced":["4.0.0"],"last_affected":[],"package":"org.springframework.webflow:spring-webflow","purl":"pkg:maven/org.springframework.webflow/spring-webflow","source":"GHSA-hw5c-xm3c-v96w"}],"prev":{"headline":"Data Binding Vulnerability in Spring Web Flow with Unified EL Parser","id":"CVE-2026-40985"},"products":["Spring Web Flow"],"published":"2026-06-11","related":[{"cvss_score":6.4,"headline":"Data Binding Vulnerability in Spring Web Flow with Unified EL Parser","id":"CVE-2026-40985","kev_date_added":null,"published":"2026-06-11"},{"cvss_score":5.9,"headline":"Insecure Default Initialization of Resource in Pivotal Spring Web Flow","id":"CVE-2017-8039","kev_date_added":null,"published":"2017-11-27"},{"cvss_score":5.9,"headline":"Insecure Default Initialization of Resource in Pivotal Spring Web Flow","id":"CVE-2017-4971","kev_date_added":null,"published":"2017-06-13"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-23","vendors":["Spring"]},"summary":"Attackers can execute scripts in user browsers via reflected input in error responses rendered as HTML by Spring Web Flow's RemotingHandler.","url":"https://insights.sbomify.com/CVE-2026-40986/"}