CVE-2026-93593: Incorrect Authorization in ArcadeData arcadedb
ArcadeDB before 26.9.1 fails to enforce security-group types ACL entries for TimeSeries types because the ACL resolver builds permissions from bucket IDs, but TimeSeries types do not own normal record buckets. An authenticated low-privilege user can read or insert TimeSeries samples despite explicit deny rules by exploiting the missing type-name-based access check that causes permission lookups to fail open.
AI Analysis
Technical Summary
CVE-2026-93593 describes an incorrect authorization vulnerability in ArcadeDB prior to version 26.9.1. The issue arises because the ACL resolver builds permissions based on bucket IDs, but TimeSeries types do not own normal record buckets. Consequently, the access control checks for TimeSeries types fail to enforce security-group ACL entries properly, causing permission lookups to fail open. This flaw enables authenticated users with low privileges to bypass explicit deny rules and read or insert TimeSeries data.
Potential Impact
An authenticated user with low privileges can bypass explicit deny ACL rules and gain unauthorized read and insert access to TimeSeries samples. This could lead to unauthorized data exposure and data integrity issues within the affected ArcadeDB instances.
Mitigation Recommendations
Upgrade ArcadeDB to version 26.9.1 or later, where this authorization issue has been fixed. Patch status is confirmed by the version boundary in the affectedVersions field. No additional vendor advisory is provided, so check the vendor's official release notes for confirmation.
CVE-2026-93593: Incorrect Authorization in ArcadeData arcadedb
Description
ArcadeDB before 26.9.1 fails to enforce security-group types ACL entries for TimeSeries types because the ACL resolver builds permissions from bucket IDs, but TimeSeries types do not own normal record buckets. An authenticated low-privilege user can read or insert TimeSeries samples despite explicit deny rules by exploiting the missing type-name-based access check that causes permission lookups to fail open.
CVSS v4.0
Score 8.6high
Affected software
ArcadeData
arcadedb
pkg:github/arcadedata/arcadedbRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-93593 describes an incorrect authorization vulnerability in ArcadeDB prior to version 26.9.1. The issue arises because the ACL resolver builds permissions based on bucket IDs, but TimeSeries types do not own normal record buckets. Consequently, the access control checks for TimeSeries types fail to enforce security-group ACL entries properly, causing permission lookups to fail open. This flaw enables authenticated users with low privileges to bypass explicit deny rules and read or insert TimeSeries data.
Potential Impact
An authenticated user with low privileges can bypass explicit deny ACL rules and gain unauthorized read and insert access to TimeSeries samples. This could lead to unauthorized data exposure and data integrity issues within the affected ArcadeDB instances.
Mitigation Recommendations
Upgrade ArcadeDB to version 26.9.1 or later, where this authorization issue has been fixed. Patch status is confirmed by the version boundary in the affectedVersions field. No additional vendor advisory is provided, so check the vendor's official release notes for confirmation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-18T10:59:45.138Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aad3d5b55bf5e2cf51004ef
Added to database: 09/18/2026, 13:32:11 UTC
Last enriched: 09/18/2026, 13:47:51 UTC
Last updated: 09/18/2026, 22:35:01 UTC
Views: 6
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