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CVE-2026-75850— ArcadeDB before 26.8.1 Per-Type ACL Bypass via Batch Handlers

Quick assessment

Affected
ArcadeData arcadedb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Arcade Data ArcadeDB是Arcade Data组织的一款高性能原生多模型数据库。 Arcade Data ArcadeDB 26.8.1之前版本存在授权问题漏洞，该漏洞源于批量和时间序列HTTP处理器未绑定经过身份验证的主体（setCurrentUser），导致按类型ACL检查无法执行，可能允许具有数据库访问权限但权限受限的用户读取或写入未授权类型。

CVSS 4.2 · Medium EPSS 0.16% · P6

Affected Version Matrix 2

VendorProduct Version RangeStatus
ArcadeData arcadedb < 26.8.1 affected
26.8.1 unaffected
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I. Basic Information for CVE-2026-75850

Vulnerability Information
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Vulnerability Title
ArcadeDB before 26.8.1 Per-Type ACL Bypass via Batch Handlers
Source: CVE Program / CVE List V5
Vulnerability Description
ArcadeDB before 26.8.1 fails to bind the authenticated principal (setCurrentUser) on its batch and time-series HTTP handlers. Because no principal is bound on the worker thread, the engine's fine-grained per-type ACL layer (LocalBucket.checkPermissionsOnFile) does not execute for these handlers. In deployments that use per-type or per-group ACLs, a user with database access but only limited per-type permissions can read from and write to types they are not authorized to access by submitting requests to the batch/time-series endpoints. Deployments that rely solely on database-level access control are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Arcade Data ArcadeDB 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arcade Data ArcadeDB是Arcade Data组织的一款高性能原生多模型数据库。 Arcade Data ArcadeDB 26.8.1之前版本存在授权问题漏洞，该漏洞源于批量和时间序列HTTP处理器未绑定经过身份验证的主体（setCurrentUser），导致按类型ACL检查无法执行，可能允许具有数据库访问权限但权限受限的用户读取或写入未授权类型。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ArcadeData arcadedb 0 ~ 26.8.1 -

II. Public POCs for CVE-2026-75850

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III. Intelligence Information for CVE-2026-75850

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Vendor Advisories for CVE-2026-75850 (1)

Other References for CVE-2026-75850 (1)

Same Patch Batch · ArcadeData · 2026-08-18 · 14 CVEs total

CVE-2026-75843 9.9 CRITICAL ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction
CVE-2026-75851 9.9 CRITICAL ArcadeDB before 26.8.1 Authentication Bypass via Async Command
CVE-2026-75854 9.8 CRITICAL ArcadeDB Redis Wire-Protocol Plugin Missing Authentication
CVE-2026-75852 9.8 CRITICAL ArcadeDB MongoDB wire protocol authentication bypass cross-database
CVE-2026-75853 8.8 HIGH ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database
CVE-2026-75855 8.7 HIGH ArcadeDB before 26.8.1 Path Traversal via create/drop database
CVE-2026-75842 7.7 HIGH ArcadeDB before 26.8.1 Arbitrary File Read via LOAD CSV
CVE-2026-75840 7.5 HIGH ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped Regex
CVE-2026-75846 7.1 HIGH ArcadeDB before 26.8.1 Unauthorized Function Deletion via DELETE FUNCTION
CVE-2026-75844 7.1 HIGH ArcadeDB before 26.8.1 SSRF via IMPORT DATABASE validator bypass
CVE-2026-75845 6.3 MEDIUM ArcadeDB 26.4.2 before 26.8.1 Authorization Bypass via set_server_setting
CVE-2026-75841 4.3 MEDIUM ArcadeDB before 26.8.1 Denial of Service via range()
CVE-2026-75839 4.3 MEDIUM ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints

IV. Related Vulnerabilities

Same product: arcadedb
Same vendor: ArcadeData
Same weakness: CWE-862

V. Comments for CVE-2026-75850

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