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Back to active CVEs
Medium · CVSS 4.3CVE-2026-75839

ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints

Answer in brief

CVE-2026-75839 records a Medium severity (CVSS 4.3) vulnerability in ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints. The current sources do not mark it as known exploited. The current feed maps ArcadeData/arcadedb (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 18, 2026Updated Aug 31, 2026Source checked Oct 2, 2026First seen by HOL Aug 18, 2026Material review Aug 31, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps ArcadeData/arcadedb (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ArcadeData/arcadedbgeneric>=0 <26.8.126.8.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ArcadeData/arcadedb.
  2. 2Review the reported fix. Update ArcadeData/arcadedb to 26.8.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 31, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 18, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

ArcadeDB (com.arcadedb:arcadedb-server) versions <= 26.7.3 contain an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler), which authenticate but do not authorize access. On an ArcadeDB HA cluster (only reachable when arcadedb.ha.enabled is set and the ha-raft module is loaded), any authenticated user — including one granted access to only one database or none — can enumerate the full server database registry and retrieve per-database metadata such as database names, last transaction IDs, bootstrap fingerprints, and peer/leader cluster topology, resulting in cross-database information disclosure. Fixed in 26.8.1.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-200
Source
CVE List V5
Source checked
Oct 2, 2026
References
2 linked sources
Open source record