{"affected":[{"defaultStatus":"unaffected","product":"nocodb","source":"CNA: VulnCheck","vendor":"nocodb","versions":[{"lessThan":"2026.09.0","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"2026.09.0","versionType":"custom"}]}],"cveId":"CVE-2026-126269","cwes":["CWE-79"],"description":"NocoDB before 2026.09.0 contains a stored cross-site scripting vulnerability that allows authenticated Editor users to execute scripts by storing crafted attachment MIME types like text/html;image/png. Attackers can write the value through the records API so the /dltemp signed URL serves HTML inline, stealing session tokens from localStorage to impersonate victims.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":9.3,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","version":"4.0"},{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},{"score":9.3,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":8.7,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794565049667,"publishedAt":1794562607840,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/nocodb/nocodb/security/advisories/GHSA-3f7w-wqf7-786q"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/nocodb-before-2026.09.0-stored-xss-via-attachment-mime-type"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/nocodb/nocodb/security/advisories/GHSA-3f7w-wqf7-786q"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/nocodb-before-2026.09.0-stored-xss-via-attachment-mime-type"}],"remediation":[],"revision":"71c63022f56ac29b08c8b9311c7e4f4050d7d4ec764624e27a6e858ea8759349","sources":[{"modifiedAt":1794562607840,"name":"CNA: VulnCheck","retrievedAt":1794564549217,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126269"},{"modifiedAt":1794565049667,"name":"NVD","retrievedAt":1794572180778,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126269"}],"ssvc":null,"status":"published","title":"NocoDB before 2026.09.0 Stored XSS via Attachment MIME Type","updatedAt":1794572180778}