{"id":"CVE-2026-110849","title":"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","summary":"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 sc…","severity":"high","cvss":7.2,"cvssVector":"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","cwe":["CWE-79"],"vendor":"n8n-io","product":"n8n","affected":["n8n < 1.123.83","n8n >= 2.0.0 < 2.41.4","n8n >= 2.42.0 < 2.42.1"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T16:17:47.547","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110849","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-29xw-66fq-4xc3","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.83-2.41.4-and-2.42.1-stored-xss-via-binary-data-file-preview","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T15:41:25.151165Z"},"cvssSource":"cna","ingestedAt":"2026-10-15T00:02:07.177Z","epss":0.00243,"epssPercentile":0.15423,"slug":"CVE-2026-110849","body":"## Overview\n\nn8n 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221999,"id":"CVE-2026-110849","ts":1792039701550,"field":"cvss","old":null,"new":"7.2"},{"seq":221998,"id":"CVE-2026-110849","ts":1792039701550,"field":"severity","old":"none","new":"high"}]}