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CVE-2026-75853— ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database

Quick assessment

Affected
ArcadeData arcadedb
Exploitation
Public or AI PoC available; prioritize validation
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 26.7.3及之前版本存在授权问题漏洞，该漏洞源于执行身份验证但未执行授权，从不检查数据库访问权限（canAccessToDatabase）且不将已验证主体绑定到引擎，可能导致任何有效服务器凭据（即使仅授予零个或一个无关数据库）通过遍历源别名选择目标数据库，读取、写入和删除服务器上任意数据库中的数据，完全绕过引擎的按类型/只读/UPDATE_SCHEMA ACL。

CVSS 8.8 · High EPSS 0.39% · P32

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-2026-75853

Vulnerability Information
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Vulnerability Title
ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database
Source: CVE Program / CVE List V5
Vulnerability Description
ArcadeDB's Gremlin wire-protocol plugin (com.arcadedb:arcadedb-gremlin) in versions <= 26.7.3 enforces authentication (SASL PLAIN) but performs no authorization: it never checks database access permissions (canAccessToDatabase) and never binds the authenticated principal into the engine. As a result, any valid server credential — even one provisioned for zero or one unrelated database — can read, write, and drop data in any database on the server by selecting a target database via a traversal-source alias, completely bypassing the engine's per-type/read-only/UPDATE_SCHEMA ACLs. The issue is fixed in version 26.8.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 26.7.3及之前版本存在授权问题漏洞，该漏洞源于执行身份验证但未执行授权，从不检查数据库访问权限（canAccessToDatabase）且不将已验证主体绑定到引擎，可能导致任何有效服务器凭据（即使仅授予零个或一个无关数据库）通过遍历源别名选择目标数据库，读取、写入和删除服务器上任意数据库中的数据，完全绕过引擎的按类型/只读/UPDATE_SCHEMA ACL。
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-2026-75853

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9815 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-75853

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Vendor Advisories for CVE-2026-75853 (2)

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-2026-75855 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
CVE-2026-75850 4.2 MEDIUM ArcadeDB before 26.8.1 Per-Type ACL Bypass via Batch Handlers

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-75853

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