# CVE-2026-55411: ToolJet cross-tenant IDOR in credential decryption endpoint

Source: https://junglewise.ai/threats/cve-2026-55411-tooljet-cross-tenant-idor-in-credential-decryption-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-25. Updated: 2026-06-25  
License: CC BY 4.0 with a link back

CVE-2026-55411 · Severity: medium · CVSS 6.8 · Published 2026-06-25

ToolJet is an open-source platform used to build internal business tools and AI agents. A security flaw allows any logged-in user to view sensitive credentials, such as database passwords and API keys, belonging to other organizations on the same server. This represents a significant breach of privacy and could allow an attacker to gain unauthorized access to a company's external data sources and connected services.

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

## Quick answers

**Is CVE-2026-55411 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-55411 being exploited in the wild.

**How severe is CVE-2026-55411?** Medium severity, with a CVSS score of 6.8, published 25 June 2026.

**Which products and versions are affected?** ToolJet < 3.20.1780-lts.

**Is there a fix for CVE-2026-55411?** 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-2026-55411 attacked?** It is attacked from the adjacent network, in a network appliance.

**Am I affected by CVE-2026-55411?** 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

An Insecure Direct Object Reference (IDOR) exists in the 'POST /api/data-sources/decrypt' endpoint. Unlike other data-source routes in ToolJet, this specific handler lacks the 'ValidateDataSourceGuard' and does not perform organization-level scoping. The underlying 'CredentialsService.getValue()' function retrieves credentials based solely on the provided 'credential_id' without verifying if the requesting user belongs to the organization that owns the secret. An authenticated attacker can exploit this by supplying a 'credential_id' in the request body to receive the plaintext value of secrets like database passwords or OAuth tokens. The issue is fixed in version 3.20.1780-lts.

## Affected products

- ToolJet ToolJet < 3.20.1780-lts

## Timeline

- 2026-06-12: advisory: GitHub Security Advisory published
- 2026-06-25: disclosed: NVD publication date

## References

- [https://github.com/ToolJet/ToolJet/security/advisories/GHSA-x7qj-hfg8-p4cw](https://github.com/ToolJet/ToolJet/security/advisories/GHSA-x7qj-hfg8-p4cw)

## Related threats

- [ToolJet authorization bypass in app environments init endpoint](https://junglewise.ai/threats/cve-2026-70642-tooljet-before-3-21-94-fixed-in-commit-e5f387a-contains-an)
- [ToolJet missing authentication in onboarding signup endpoint](https://junglewise.ai/threats/cve-2026-126795-a-vulnerability-was-determined-in-tooljet-up-to-3-20-256-lts-3)
- [ToolJet authorization bypass in TooljetDB controller](https://junglewise.ai/threats/cve-2026-82875-tooljet-authorization-bypass-in-tooljetdb-controller)
- [ToolJet cross-tenant authorization bypass in tooljet-db endpoints](https://junglewise.ai/threats/cve-2026-82874-tooljet-cross-tenant-authorization-bypass-in-tooljet-db-endpoints)
- [ToolJet authorization bypass in resources export endpoint](https://junglewise.ai/threats/cve-2026-82873-tooljet-authorization-bypass-in-resources-export-endpoint)