CVE-2026-75845Public exploitNetwork attack vector

Server setting tampering via missing role check

Published Aug 18, 2026 · Updated Aug 18, 2026

Authorization bypass in ArcadeDB 26.4.2 through 26.7.3 lets remote authenticated users alter server settings through set_server_setting. SetServerSettingTool.execute() checks only the global allowAdmin flag, then writes GlobalConfiguration directly without verifying the caller's ServerSecurityUser role. Exposure requires an MCP deployment with allowAdmin=true and a non-root allowedUsers set; a read-only account can then tamper with runtime configuration and interrupt service.

CVSS severity6.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in ArcadeDB 26.4.2 through 26.7.3 lets remote authenticated users alter server settings through set_server_setting. SetServerSettingTool.execute() checks only the global allowAdmin flag, then writes GlobalConfiguration directly without verifying the caller's ServerSecurityUser role. Exposure requires an MCP deployment with allowAdmin=true and a non-root allowedUsers set; a read-only account can then tamper with runtime configuration and interrupt service.

The record

CVE
CVE-2026-75845
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Arcade Data
Product
ArcadeDB
Classifications
CWE-269
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=26.4.2 <26.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arcade Data · ArcadeDBversion=26.4.2 <26.8.1

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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