High 8.1Published Sep 15, 2026

CVE-2026-54076ArcadeDB: Read-only users can mutate database schema (incomplete fix of CVE-2026-44221)

Updated under an hour ago (2026-10-19 08:00 UTC)

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It affects ArcadeData arcadedb and 1 other product. Add what you run to find out whether that includes you.

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Exploited in the last 30 days

ArcadeDB is a Multi-Model DBMS. Prior to 26.6.1, the fix for CVE-2026-44221 added an UPDATE_SCHEMA authorization check only to LocalDocumentType.createProperty, while the remaining public schema mutators in engine/src/main/java/com/arcadedb/schema/LocalDocumentType.java and engine/src/main/java/com/arcadedb/schema/LocalProperty.java remained unchecked. An authenticated identity, including a read-only API token without UPDATE_SCHEMA permission, can use DROP PROPERTY, ALTER TYPE, or ALTER PROPERTY through the database command/query HTTP endpoints to rename types, change inheritance, alter aliases or buckets, drop properties, and change property constraints. The issue does not directly disclose or write record data, but unauthorized schema mutation can corrupt the meaning of stored records and breach the documented permission model. This issue is fixed in version 26.6.1.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-862, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ArcadeData arcadedb arcadedata:arcadedb (from the name)	before 26.6.1	CNA record
com.arcadedb arcadedb-engine com.arcadedb:arcadedb_engine (from the name)	before 26.6.1	CNA record

References

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vg6x-6pg9-6qwgx-refsource-confirm
https://github.com/ArcadeData/arcadedb/pull/4423x-refsource-misc
https://github.com/ArcadeData/arcadedb/commit/2ee76fe442b974b2482f1e9eddd1ab429bcac614x-refsource-misc
https://github.com/ArcadeData/arcadedb/releases/tag/26.6.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.