CVE-2026-55411 Missing authorization in ToolJet
Any authenticated user can decrypt secrets from other organizations due to missing authorization checks in the data-source decryption endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55411?
CVE-2026-55411 is a medium-severity missing authorization vulnerability in ToolJet, published on 25 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ToolJet is the open-source foundation am AI-native platform for building and deploying internal tools, workflows and AI agents. Prior to 3.20.1780-lts, the authenticated endpoint POST /api/data-sources/decrypt returns the decrypted plaintext for any credential whose credential_id is supplied in the request body. Unlike every neighbouring data-source route, this handler is not protected by ValidateDataSourceGuard, does not receive the calling @User(), and the underlying CredentialsService.getValue() looks the credential up by id only, with no organization scoping. As a result, any authenticated user of any organization can decrypt the data-source secrets of any other organization by supplying that organization's credential_id — a cross-tenant confidentiality breach. This vulnerability is fixed in 3.20.1780-lts.
Which versions are affected by CVE-2026-55411?
How do I fix CVE-2026-55411?
No fix has been published for CVE-2026-55411 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55411 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55411 exists.