Critical severity9.9NVD Advisory· Published Aug 18, 2026

CVE-2026-75843

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

ArcadeDB/ArcadeDBllm-fuzzy
Range: <26.8.1
Arcadedata/Arcadedbllm-fuzzy
Range: <26.8.1

Patches

Vulnerability mechanics

References

github.com/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwfnvd
www.vulncheck.com/advisories/arcadedb-before-privilege-escalation-via-grpc-transactionnvd

News mentions

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cvss	0.643
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000