{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-110849 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-110849 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-110849 is a high-severity cross-site scripting vulnerability in n8n-io n8n, published on 14 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-2026-110849 and fix it if it is affected.\n\nWhat it is: CVE-2026-110849 is a high-severity cross-site scripting vulnerability in n8n-io n8n, published on 14 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-2026-110849 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-2026-110849/ (Markdown: https://insights.sbomify.com/CVE-2026-110849/index.md)","id":"CVE-2026-110849","markdown":"https://insights.sbomify.com/CVE-2026-110849/index.md","name":"CVE-2026-110849","record":{"aliases":["GHSA-29xw-66fq-4xc3","GHSA-m7pg-rcp8-66vv"],"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":"An attacker can execute arbitrary scripts in the victim's browser via stored XSS in the file preview, potentially taking over their account.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"n8n before 1.123.83, 2.41.4, and 2.42.1 contains a stored cross-site scripting vulnerability in the file-preview modal, which re-publishes binary data as an unsandboxed same-origin blob URL. A member who uploads a crafted item can run script in the n8n origin of whoever previews it, typically the owner, and act with their session.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Binary-Data File Preview","id":"CVE-2026-110849","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 2.41.4 and 2.42.1 Credential Check Bypass via Agent Node Parameters","id":"CVE-2026-110850"},"packages":[],"prev":{"headline":"n8n before 1.123.83, 2.41.4, and 2.42.1 Prototype Pollution via AI Workflow Builder Connection Merge","id":"CVE-2026-110848"},"products":["n8n"],"published":"2026-10-14","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":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["n8n-io"]},"summary":"An attacker can execute arbitrary scripts in the victim's browser via stored XSS in the file preview, potentially taking over their account.","url":"https://insights.sbomify.com/CVE-2026-110849/"}