Executive brief
NocoDB, a platform that turns databases into smart spreadsheets, contains a security flaw in its database connection testing feature. An authenticated user could exploit this to probe or interact with internal systems, such as private databases or cloud metadata services, that are normally hidden from the public internet. This could lead to unauthorized internal network mapping or access to sensitive internal infrastructure.
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in NocoDB's connection-test endpoint. The application fails to perform DNS resolution and range-checking on user-supplied database hosts, allowing raw TCP sockets to be opened to private, link-local, and loopback addresses (including IPv4-mapped IPv6). An authenticated attacker with connection-test permissions can use this to scan internal services like Redis or cloud metadata endpoints. While a fix was introduced in version 2026.05.1 using a new validation helper, the advisory notes that DNS rebinding attacks may still be possible during the resolve-vs-connect window.
Affected products
- NocoDB NocoDB < 2026.05.1
Timeline
- 2026-06-04: advisory: GitHub Security Advisory published
- 2026-06-23: disclosed: CVE published to NVD
- 2026-05-01: patched: Vulnerability fixed in version 2026.05.1