Is CVE-2026-82874 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82874 being exploited in the wild.

How severe is CVE-2026-82874?

Critical severity, with a CVSS score of 9.9, published 31 August 2026.

Is there a fix for CVE-2026-82874?

A patch was published on 2026-08-07: Fix released in v3.16.208 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-82874 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-82874?

Check whether you run ToolJet 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.

CVE-2026-82874: ToolJet cross-tenant authorization bypass in tooljet-db endpoints

CVE-2026-82874 · Severity: critical · CVSS 9.9 · Published 2026-08-31

ToolJet is an open-source low-code platform that allows users to build applications and manage databases. The vulnerability allows any authenticated user with Builder privileges to read, modify, or delete database tables belonging to other organizations on the same instance by bypassing tenant isolation checks. Attackers can discover victim organization IDs from publicly shared apps, then exploit database schema endpoints to exfiltrate data, plant malicious tables, corrupt schemas, or permanently destroy data in unrelated organizations.

Technologies: ToolJet. Vendors: ToolJet.

Quick answers

Is CVE-2026-82874 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82874 being exploited in the wild.
How severe is CVE-2026-82874?: Critical severity, with a CVSS score of 9.9, published 31 August 2026.
Which products and versions are affected?: ToolJet before v3.16.208.
Is there a fix for CVE-2026-82874?: A patch was published on 2026-08-07: Fix released in v3.16.208 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-82874 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-82874?: Check whether you run ToolJet 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 a cross-tenant authorization bypass (CWE-639) in the tooljet-db controller (/server/src/modules/tooljet-db/controller.ts). The root cause is that all schema operation endpoints (create table, drop table, add/drop columns, etc.) accept an organizationId path parameter that is passed directly to backend operations without validating that the authenticated user belongs to that organization. The ability factory only checks the user's role against the tj-workspace-id HTTP header (user's own workspace) and never cross-validates it against the path parameter. Any authenticated Builder user can craft requests with arbitrary organizationId values to perform read and write operations on other tenants' databases. Victim organization IDs are discoverable pre-authentication via GET /api/apps/slugs/:slug on public apps, which leak the owning organization's UUID. The fix is available in v3.16.208, which adds proper tenant validation similar to the organization-validate guard already used in data-sources controllers.

Affected products

ToolJet ToolJet before v3.16.208

Timeline

2026-08-31: disclosed
2026-08-07: patched: Fix released in v3.16.208

References

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