{"cve":"CVE-2026-54076","nvd":{"published":"2026-09-15T16:17:13.560","modified":"2026-09-30T17:51:56.193","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":8.1},"cwes":["CWE-862","CWE-863"],"references":["https://github.com/ArcadeData/arcadedb/commit/2ee76fe442b974b2482f1e9eddd1ab429bcac614","https://github.com/ArcadeData/arcadedb/pull/4423","https://github.com/ArcadeData/arcadedb/releases/tag/26.6.1","https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vg6x-6pg9-6qwg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-54076","score":0.00504,"percentile":0.42812,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-vg6x-6pg9-6qwg","url":"https://osv.dev/vulnerability/GHSA-vg6x-6pg9-6qwg","summary":"ArcadeDB: Read-only users can mutate database schema (incomplete fix of CVE-2026-44221)","modified":"2026-07-16T20:26:43.971264Z","packages":[{"ecosystem":"Maven","name":"com.arcadedb:arcadedb-engine","purl":"pkg:maven/com.arcadedb/arcadedb-engine","ranges":["<26.6.1"],"fixed":["26.6.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}