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CVE-2026-55411— ToolJet: Cross-tenant credential decryption (IDOR) in POST /api/data-sources/decrypt — any authenticated user can decrypt any organization's data-source secrets

Quick assessment

Affected
ToolJet ToolJet
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ToolJet是ToolJet公司开源的一款用于构建业务应用程序的可扩展低代码框架。 ToolJet 3.20.1780-lts之前版本存在授权问题漏洞，该漏洞源于端点POST /api/data-sources/decrypt未受ValidateDataSourceGuard保护，且凭证查找按ID进行无组织范围限制，可能导致任何组织的认证用户通过提供其他组织的credential_id解密数据源秘密，造成跨租户机密性泄露。

CVSS 6.8 · Medium EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
ToolJet ToolJet < 3.20.1780-lts affected
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I. Basic Information for CVE-2026-55411

Vulnerability Information
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Vulnerability Title
ToolJet: Cross-tenant credential decryption (IDOR) in POST /api/data-sources/decrypt — any authenticated user can decrypt any organization's data-source secrets
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
ToolJet 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ToolJet是ToolJet公司开源的一款用于构建业务应用程序的可扩展低代码框架。 ToolJet 3.20.1780-lts之前版本存在授权问题漏洞，该漏洞源于端点POST /api/data-sources/decrypt未受ValidateDataSourceGuard保护，且凭证查找按ID进行无组织范围限制，可能导致任何组织的认证用户通过提供其他组织的credential_id解密数据源秘密，造成跨租户机密性泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ToolJet ToolJet < 3.20.1780-lts -

II. Public POCs for CVE-2026-55411

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III. Intelligence Information for CVE-2026-55411

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Vendor Advisories for CVE-2026-55411 (1)

Same Patch Batch · ToolJet · 2026-06-25 · 3 CVEs total

CVE-2026-55412 8.3 HIGH ToolJet Cloud - SSRF to Azure Cloud Infrastructure Compromise
CVE-2026-55413 ToolJet - Marketplace Plugin Poisoning Enables Instance-Wide Remote Code Execution

IV. Related Vulnerabilities

Same product: ToolJet
Same vendor: ToolJet
Same weakness: CWE-639

V. Comments for CVE-2026-55411

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