CVE-2026-114056

ArcadeDB from 26.8.1 before 26.10.1 Authorization Bypass via ALTER TYPE WITH

State: Published
Severity: 5.3 Medium
Published: Oct 21, 2026
Updated: Oct 28, 2026
Reserved: Oct 20, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
arcadedbArcadeData	26.8.1 to before 26.10.1Affected 26.10.1Not affected

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 WITHthird-party-advisory

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