CVE-2026-75843

CRITICAL 9.9

ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

ArcadeDB before 26.8.1 fails to bind the authenticated principal on the gRPC transaction executor thread in beginTransaction, allowing authenticated readers to execute JavaScript commands without scripting authorization checks. Attackers can execute executeCommand with a transaction ID to run unrestricted JavaScript that creates server-wide administrator accounts.

CWE	CWE-269
Vendor	arcadedata
Product	arcadedb
Published	Aug 18, 2026
Last Updated	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ArcadeData / arcadedb

0 < 26.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwf vulncheck.com: https://www.vulncheck.com/advisories/arcadedb-before-privilege-escalation-via-grpc-transaction

Credits

🔍 manus-use