{"cve":"CVE-2026-53929","nvd":{"published":"2026-06-23T21:17:01.743","modified":"2026-06-25T20:17:15.400","status":"Deferred","description":"NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, with NC_SECURE_ATTACHMENTS=true, an authenticated uploader could deliver .html or .svg attachments that the browser rendered inline from the NocoDB origin instead of forcing a download. The signed attachment handler stored response-header overrides under PascalCase keys (ResponseContentDisposition, ResponseContentType) while the controller that served the file read them under lowercase-hyphen names (response-content-disposition). The mismatch dropped the Content-Disposition: attachment header, leaving Express to auto-render .html, .svg, and similar inline. This vulnerability is fixed in 2026.05.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.1},"cvss_v3":null,"cwes":["CWE-79"],"references":["https://github.com/nocodb/nocodb/security/advisories/GHSA-6mhr-74x2-98v9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:41:17.107060303+00:00"},"epss":{"cve":"CVE-2026-53929","score":0.00396,"percentile":0.33853,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6mhr-74x2-98v9","url":"https://osv.dev/vulnerability/GHSA-6mhr-74x2-98v9","summary":"NocoDB: Stored Cross-Site Scripting via Secure Attachment","modified":"2026-07-20T21:30:33.069947270Z","packages":[{"ecosystem":"npm","name":"nocodb","purl":"pkg:npm/nocodb","ranges":["<=0.301.3"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}