CVE-2026-53929 — NocoDB: Stored Cross-Site Scripting via Secure Attachment

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
nocodb / nocodb	affected < 2026.05.1

CWE

CWE-79

References

https://github.com/nocodb/nocodb/security/advisories/GHSA-6mhr-74x2-98v9

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.