# CVE-2026-82869: ToolJet Database privilege escalation in join_tables endpoint

Source: https://junglewise.ai/threats/cve-2026-82869-tooljet-database-privilege-escalation-in-join-tables-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-31. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-82869 · Severity: high · CVSS 7.7 · Published 2026-08-31

ToolJet Database is a low-code platform component that allows users to query and manipulate data from connected sources. A privilege escalation flaw in the join_tables endpoint allows any authenticated user—including those with minimal permissions—to read database tables from workspaces they don't belong to, potentially exposing sensitive data across organizations.

Vendors: [ToolJet](https://junglewise.ai/threats/vendors/tooljet).

## Quick answers

**Is CVE-2026-82869 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82869 being exploited in the wild.

**How severe is CVE-2026-82869?** High severity, with a CVSS score of 7.7, published 31 August 2026.

**Which products and versions are affected?** ToolJet Database before v3.16.44.

**Is there a fix for CVE-2026-82869?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-82869 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-82869?** Check whether you run ToolJet Database at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an authorization bypass (CWE-639) in the POST /api/tooljet-db/organizations/:organizationId/join endpoint. The root cause involves three combined flaws: (1) the JOIN_TABLES ability is granted unconditionally to all authenticated users without role checks, (2) the OrganizationAuthGuard with isUserNotMandatory=true bypasses strict workspace-membership validation, and (3) the service uses the path :organizationId for data retrieval while authentication is evaluated against the header/token org, decoupling authn/authz from the data source. An attacker with low-privilege credentials (end-user) can craft a request with their own workspace in the tj-workspace-id header and a victim workspace ID in the path, then retrieve arbitrary tables if they know the table UUID. Cross-tenant reads require knowledge of internal-table UUIDs; within-tenant escalation requires only the attacker's own table IDs. Patched in v3.16.44 and later.

## Affected products

- ToolJet ToolJet Database before v3.16.44

## Timeline

- 2026-08-07: disclosed: GHSA-7vj5-wxfm-gmfq published
- 2026-08-31: advisory: NVD published CVE-2026-82869

## References

- [https://github.com/ToolJet/ToolJet/security/advisories/GHSA-7vj5-wxfm-gmfq](https://github.com/ToolJet/ToolJet/security/advisories/GHSA-7vj5-wxfm-gmfq)
- [https://www.vulncheck.com/advisories/tooljet-database-before-3.16.44-privilege-escalation-via-join-tables](https://www.vulncheck.com/advisories/tooljet-database-before-3.16.44-privilege-escalation-via-join-tables)