Categories
CVE-2026-67342 critical CVSS 9.8

Information Disclosure in com.arcadedb:arcadedb-server (CVE-2026-67342)

Summary

Vulnerability in com.arcadedb:arcadedb-server (CVE-2026-67342). Successful exploitation can lead to full system takeover. Exploitable via POST /api/v1/batch/b. Mitigation: upgrade to 26.7.2 or later.

Original description

The description as published by the source.

ArcadeDB versions before 26.7.2 contain an authorization bypass vulnerability in HTTP handlers for time series, batch, Prometheus, and Grafana endpoints that fail to validate database access permissions. Attackers can access and modify databases they are not authorized to use by directly calling affected endpoints with arbitrary database parameters.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-67342 has been found in com.arcadedb:arcadedb-server.
Attackers can target a specific entry point like POST /api/v1/batch/b over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade com.arcadedb:arcadedb-server to 26.7.2 or later.
If unsure, ask your IT team or search "com.arcadedb:arcadedb-server CVE-2026-67342" on the vendor's site.

CVE-2026-67342 (com.arcadedb:arcadedb-server) — CWE-200 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: POST /api/v1/batch/b / POST /api/v1/ts/b/write / GET /api/v1/ts/b/prom/api/v1/query / POST /api/v1/ts/b/query
Patched: 26.7.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

Information disclosure (CWE-200) exists in com.arcadedb:arcadedb-server. Attackers reach the vulnerable code path via POST /api/v1/batch/b without authentication.

📍 Affected scope

Check the vendor advisory for the affected versions of com.arcadedb:arcadedb-server. Attack surface: POST /api/v1/batch/b / POST /api/v1/ts/b/write / GET /api/v1/ts/b/prom/api/v1/query / POST /api/v1/ts/b/query.

🔥 Severity

Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 26.7.2.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual POST /api/v1/batch/b requests with malformed payloads or SQL meta-characters. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで com.arcadedb:arcadedb-server を使っているサービスとバージョンを洗い出す。

  2. 2
    Hunt for indicators of compromise detect
    grep 'POST /api/v1/batch/b' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで POST /api/v1/batch/b への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。

  3. 3
    Apply patch patch
    Upgrade com.arcadedb:arcadedb-server to 26.7.2

    ステージング環境で 26.7.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 2 で見つけた異常検知の続報チェックを含めること。

  4. 4
    Post-deployment verification verify
    Replay attack against POST /api/v1/batch/b on staging to confirm patch closes the vector

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 2 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

Maven com.arcadedb:arcadedb-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.7.2"}]}]

References

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