CVE-2026-75843 PUBLISHED

ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction

Assigner: VulnCheck
Reserved: 18.08.2026 Published: 18.08.2026 Updated: 18.08.2026

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.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	ArcadeData
Product	arcadedb
Versions	Default: unaffected affected from 0 to 26.8.1 (excl.) Version 26.8.1 is unaffected

CVE-2026-75843 PUBLISHED

ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction

Metrics

Product Status

Credits

References

Problem Types