CVE-2026-75841Public exploitNetwork attack vector

Authenticated heap exhaustion via eager range() materialization

Published Aug 18, 2026 · Updated Aug 18, 2026

Denial of service in ArcadeDB before 26.8.1 allows remote authenticated users to interrupt service via oversized Cypher range() queries. The Cypher range() implementation eagerly materializes every integer in the requested range into a Java ArrayList and does not reject cardinalities that exceed available heap, leading to java.lang.OutOfMemoryError during list growth. Reachability requires permission to execute Cypher queries; a single tested request returned HTTP 500 and the JVM recovered, but repeated or concurrent requests can degrade other requests or temporarily make the service unavailable.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in ArcadeDB before 26.8.1 allows remote authenticated users to interrupt service via oversized Cypher range() queries. The Cypher range() implementation eagerly materializes every integer in the requested range into a Java ArrayList and does not reject cardinalities that exceed available heap, leading to java.lang.OutOfMemoryError during list growth. Reachability requires permission to execute Cypher queries; a single tested request returned HTTP 500 and the JVM recovered, but repeated or concurrent requests can degrade other requests or temporarily make the service unavailable.

The record

CVE
CVE-2026-75841
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Arcade Data
Product
ArcadeDB
Classifications
CWE-770, CAPEC-130, T1499
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=0 <26.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arcade Data · ArcadeDBversion=0 <26.8.1

Published CVSS scores

4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-130Excessive Allocation
T1499Endpoint Denial of Service

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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