Vulnerability · Published Oct 21, 2026 · Assigned by VulnCheck
CVE-2026-114056ArcadeDB from 26.8.1 before 26.10.1 Authorization Bypass via ALTER TYPE WITH
Medium 4.3
In plain English
A medium-severity missing authorization in arcadedb from ArcadeData. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 77.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ArcadeData | arcadedb | 26.8.1 – before 26.10.1 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- GitHub Security Advisory (GHSA-9c7g-grf7-j2r5) vendor-advisory
- VulnCheck Advisory: ArcadeDB from 26.8.1 before 26.10.1 Authorization Bypass via ALTER TYPE WITH third-party-advisory