Tooljet · Tooljet · CVE-2026-55411
**Name of the Vulnerable Software and Affected Versions**
ToolJet versions prior to 3.20.1780-lts
**Description**
An authenticated user can decrypt data-source secrets belonging to any other organization, leading to a cross-tenant confidentiality breach. This occurs because the endpoint 'POST /api/data-sources/decrypt' lacks the protection of ValidateDataSourceGuard and does not receive the calling `@User()` context. Additionally, the `CredentialsService.getValue()` function retrieves credentials using only the `credential id` provided in the request body without verifying organization scoping.
**Recommendations**
Update to version 3.20.1780-lts.
As a temporary workaround, restrict access to the 'POST /api/data-sources/decrypt' endpoint to minimize the risk of exploitation.