Authorization bypass through user-controlled key in NocoDB - #VU162890
Published: November 9, 2026
Vulnerability identifier: #VU162890
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an authenticated attacker with the Creator role on one base to read and modify another tenant's external database without victim-base privileges.
The vulnerability exists due to NocoDB caching database connections by source identifiers shared across bases while accepting caller-supplied identifiers during source creation. An authenticated attacker can reuse a known victim source identifier when adding a source to access the victim database if its connection is cached in the handling process.
Affected software
NocoDB
Remediation
Install security update from vendor's website.
NocoDB - update to 2026.08.1