ArcadeDB: Read-only users can mutate database schema (incomplete fix of CVE-2026-44221)
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ArcadeData | arcadedb | before 26.6.1 | 26.6.1 | Patch available | CNA |
| com.arcadedb | arcadedb-engine | before 26.6.1 | 26.6.1 | Patch available | CNA |
| — | com.arcadedb:arcadedb-engine (Maven) | before 26.6.1 | 26.6.1 | Patch available | GHSA-vg6x-6pg9-6qwg |
- arcadedb VendorArcadeData Affected before 26.6.1 Fixed in 26.6.1 Patch available CNA
- arcadedb-engine Vendorcom.arcadedb Affected before 26.6.1 Fixed in 26.6.1 Patch available CNA
- com.arcadedb:arcadedb-engine (Maven) Vendor— Affected before 26.6.1 Fixed in 26.6.1 Patch available GHSA-vg6x-6pg9-6qwg
Remediation
- Fix · CNA arcadedb (ArcadeData) Fixed in 26.6.1
- Fix · CNA arcadedb-engine (com.arcadedb) Fixed in 26.6.1
- Fix · GHSA-vg6x-6pg9-6qwg com.arcadedb:arcadedb-engine (Maven) Fixed in 26.6.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54076
- 2026-10-03 Alias added: GHSA-vg6x-6pg9-6qwg
References
Other 5
- https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vg6x-6pg9-6qwg
- https://github.com/ArcadeData/arcadedb/pull/4423
- https://github.com/ArcadeData/arcadedb/commit/2ee76fe442b974b2482f1e9eddd1ab429bcac614
- https://github.com/ArcadeData/arcadedb/releases/tag/26.6.1
- https://github.com/ArcadeData/arcadedb
More ArcadeData vulnerabilities
- TI-2026-53098 ArcadeDB Redis Wire-Protocol Plugin Missing Authentication CVSS 4.0CRITICAL 9.3
- TI-2026-53086 ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped Regex CVSS 4.0HIGH 8.7
- TI-2026-53095 ArcadeDB before 26.8.1 Authentication Bypass via Async Command CVSS 4.0CRITICAL 9.4
- TI-2026-53089 ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction CVSS 4.0CRITICAL 9.4
- TI-2026-53097 ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database CVSS 4.0HIGH 8.7
- TI-2026-63057 ArcadeDB before 26.9.1 TimeSeries ACL Bypass via Type Permission CVSS 4.0HIGH 8.6
Sources
- CVE-2026-54076 · CVE Program
- CVE-2026-54076 · NVD
- FIRST EPSS
- GHSA-vg6x-6pg9-6qwg · GitHub Advisory Database · CC BY 4.0
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