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ToolJet CVE-2026-82870

| EUVDEUVD-2026-68405 HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-08-31 VulnCheck GHSA-9fvx-4ww2-hqm9
7.0
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
7.0 HIGH
CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.1 HIGH

Builder-role authentication (PR:L), organizationId enumeration required (AC:H), and irreversible cross-tenant integrity harm (S:C/I:H) with minor availability impact; no confidentiality exposure applies.

3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
CVE Published
Aug 31, 2026 - 10:50 cve.org
HIGH 7.0
Patch available
Aug 31, 2026 - 10:16 EUVD
Analysis Generated
Aug 31, 2026 - 09:23 vuln.today

DescriptionCVE.org

ToolJet before v3.16.208 fails to validate organizationId ownership in database write and destroy routes, allowing any builder-role user to create, alter, or drop tables in other organizations' databases. Attackers can exploit missing organization-resolving guards to permanently delete tables, insert arbitrary data, and modify schemas across tenant boundaries on shared instances.

AnalysisAI

Cross-tenant database manipulation in ToolJet before v3.16.208 exposes all organizations on shared instances to unauthorized DDL and DML operations by any builder-role user in a co-tenant organization. The database write and destroy API routes accept a user-supplied organizationId without server-side ownership verification, enabling permanent table deletion, arbitrary data insertion, and schema alteration across organizational boundaries. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a valid builder-role account in at least one organization on the targeted ToolJet instance - builder is an elevated role above viewer, not the default lowest-privilege role, providing a meaningful barrier. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:A/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L) assigns high complexity and an attack prerequisite (AT:P), reflecting that the attacker must hold a builder-role account and be able to identify a target organizationId - meaningful practical barriers that distinguish this from a trivially exploitable flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade ToolJet to v3.16.208 or later, which introduces proper server-side organizationId ownership validation in the affected routes; this fix version is confirmed by the vendor security advisory GHSA-xr3w-r926-xfmm (https://github.com/ToolJet/ToolJet/security/advisories/GHSA-xr3w-r926-xfmm). … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-82870 vulnerability details – vuln.today

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