What’s Vulnerable › Vulnerabilities

CVE-2026-114056: ArcadeDB from 26.8.1 before 26.10.1 Authorization Bypass via ALTER TYPE WITH

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-28
• Weakness: CWE-862

Description

ArcadeDB from 26.8.1 before 26.10.1 contains an authorization bypass vulnerability that allows read-only users to modify edge type lightweight and unique schema flags without UPDATE_SCHEMA permission. Attackers can send a bare ALTER TYPE edgeType WITH lightweight = true command over the HTTP, gRPC, or Bolt command API to persistently alter edge storage declarations.

Affected products

• ArcadeData arcadedb: from 26.8.1 before 26.10.1 — fixed in 26.10.1

How to fix

Upgrade to a fixed version: ArcadeData arcadedb 26.10.1. Check the vendor advisory for mitigations.

References

• https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-9c7g-grf7-j2r5
• https://www.vulncheck.com/advisories/arcadedb-from-26.8.1-before-26.10.1-authorization-bypass-via-alter-type-with
• https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-9c7g-grf7-j2r5

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