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CVE-2026-54076

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

Published: Sep 15, 2026Updated: Sep 15, 2026 Sources: CVE List NVDCWE-862
8.1HIGH
NVD MITRE
EPSS Score
0.4%
Top 65.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-862CWE-863

Affected Products

ArcadeData
aka arcadedb
arcadedbOn-prem
Databases / nosql
com.arcadedb
arcadedb-engine

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/ArcadeData/arcadedb/commit/2ee76fe442b974b2482f1e9eddd1ab429bcac614
github.com
https://github.com/ArcadeData/arcadedb/pull/4423
github.com
https://github.com/ArcadeData/arcadedb/releases/tag/26.6.1
github.com
and 1 more references View all →

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