CVE-2026-44221 json
ArcadeDB: Cross-database authorization bypass and unsecured newly-created databases
published 2026-05-05 6 mo ago modified 2026-10-26 13 d ago also GHSA-fxc7-fm93-6q77 , EUVD-2026-29798
- cvss
- 9.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
ArcadeDB is a Multi-Model DBMS. Starting in version 21.10.1 and prior to version 26.4.2, authenticated users and API tokens scoped to a specific database could read, write, and mutate schema on any other database on the same server. Two distinct defects contributed: (1) ServerSecurityUser.getDatabaseUser() returned a DB user with an uninitialized fileAccessMap, which requestAccessOnFile treated as allow-all; (2) ArcadeDBServer.createDatabase() omitted factory.setSecurity(...) so any database created via POST /api/v1/server {"command":"create database X"} had its entire record-level authorization system silently disabled. In combination, record-level and database-level authorization could be bypassed by any authenticated principal. This vulnerability is fixed in 26.4.2.
Patch / fix
- maven com.arcadedb:arcadedb-server 26.4.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | com.arcadedb:arcadedb-server | >=21.10.1, <26.4.2 |
26.4.2 |
Affected products
- ArcadeData arcadedb
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/ArcadeData/arcadedb/commit/04110c06315da55604ac107f71fe7182f3a3deb8
web
-
github.com
/ArcadeData/arcadedb/commit/9e708f116b
web
-
github.com
/ArcadeData/arcadedb/security/advisories/GHSA-fxc7-fm93-6q77
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-44221
advisory
-
github.com
/ArcadeData/arcadedb
package
Sources
- CVE List CVE-2026-44221
- GitHub Advisory GHSA-fxc7-fm93-6q77
- NVD CVE-2026-44221
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