NocoDB up to 2026.04.0 base-view improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in NocoDB up to 2026.04.0. This impacts an unknown function of the file /nocodb/src/strategies/base-view. The manipulation results in improper authorization. This vulnerability is reported as CVE-2026-46552. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in NocoDB up to 2026.04.0. Affected is an unknown part of the file /nocodb/src/strategies/base-view. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. CVE summarizes:

NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, shared-base sessions were granted the same base-member capabilities as authenticated viewers. Using only the shared-base UUID (xc-shared-base-id), an attacker could enumerate base members and invite an arbitrary email into the base as a real member. The invited user could then redeem the invite via the normal signup flow and retain authenticated access even after the owner revoked the shared link. Shared-base sessions were mapped to ProjectRoles.VIEWER in packages/nocodb/src/strategies/base-view.strategy/base-view.strategy.ts, and packages/nocodb/src/utils/acl.ts granted baseUserList and userInvite to that role. The shared frontend (packages/nc-gui/composables/useApi/interceptors.ts) deliberately removed auth headers in favour of the shared-base header, but the ACL middleware did not distinguish shared sessions from genuine viewers. This vulnerability is fixed in 2026.04.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-46552 since 05/14/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 2026.04.1 eliminates this vulnerability.

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Productinfo

Name

• NocoDB

Version

• 2026.04

Website

• Product: https://github.com/nocodb/nocodb/

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