CVE-2026-75843CWE-269privilege-escalation

CVE-2026-75843

Critical · published August 18, 2026

CVSS v3.1
9.9
EPSS
0%
Percentile
37.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.4 · 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
EPSS
0.00442 · 37.4th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-08-18T16:19Z
References (3)
https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwf · [email protected]https://www.vulncheck.com/advisories/arcadedb-before-privilege-escalation-via-grpc-transaction · [email protected]https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwf · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 AUG 11:19Z
    ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction
    cvelistv5