What is CVE-2026-114056?

CVE-2026-114056 is a medium-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-21.

How severe is CVE-2026-114056?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Arcadedata Arcadedb

CVE-2026-114056

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.

Vulnerability class: Broken Access Control

Published 2026-10-21 · last modified 2026-10-21.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Arcadedata Arcadedb

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/ArcadeData/arcadedb/security/advisories/GHSA-9c7g-grf7-j2r5 (vendor-advisory)
www.vulncheck.com/advisories/arcadedb-from-26.8.1-before-26.10.1-authorization-… (third-party-advisory)

Frequently asked questions

What is CVE-2026-114056?: CVE-2026-114056 is a medium-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-21.
How severe is CVE-2026-114056?: Medium severity. CVSS v3 base score is 4.3 out of 10.