{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103249 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-103249 is a medium-severity cross-site scripting vulnerability in n8n-io n8n, published on 1 Oct 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-2026-103249 and fix it if it is affected.\n\nWhat it is: CVE-2026-103249 is a medium-severity cross-site scripting vulnerability in n8n-io n8n, published on 1 Oct 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-2026-103249 in the wild and no public exploit code.\n\nAffected product: n8n-io n8n. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-103249/ (Markdown: https://insights.sbomify.com/CVE-2026-103249/index.md)","id":"CVE-2026-103249","markdown":"https://insights.sbomify.com/CVE-2026-103249/index.md","name":"CVE-2026-103249","record":{"aliases":["GHSA-7g6m-6jgv-fqm4","GHSA-c2wp-6fgc-xjq4","MINI-2xpp-pvgf-vq8c"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"n8n workflow automation","requires_auth":"low_privilege","summary":"Workflow authors can inject malicious scripts via Resource Locator parameters, executing arbitrary JavaScript in other users' browsers when interacting with node dropdowns.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a stored DOM cross-site scripting vulnerability in Resource Locator parameter dropdown link handling. Workflow authors can inject malicious script URLs that execute arbitrary JavaScript in the editor origin when other users open the node dropdown and click the external-link icon, with the payload persisting across workflow imports and shares.","ecosystems":[],"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":"n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator","id":"CVE-2026-103249","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"n8n before 1.123.80, 2.39.6, and 2.40.1 NoSQL Injection via MongoDB Chat Memory","id":"CVE-2026-103250"},"packages":[],"prev":{"headline":"n8n before 1.123.80, 2.39.6, and 2.40.1 PostgREST Filter Injection via Supabase","id":"CVE-2026-103248"},"products":["n8n"],"published":"2026-10-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-10-01","vendors":["n8n-io"]},"summary":"Workflow authors can inject malicious scripts via Resource Locator parameters, executing arbitrary JavaScript in other users' browsers when interacting with node dropdowns.","url":"https://insights.sbomify.com/CVE-2026-103249/"}