CVE-2026-67344

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-01. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ArcadeDB before 26.7.2 fails to enforce the UPDATE_SCHEMA database permission on the ALTER TYPE ... CUSTOM and ALTER TYPE ... BUCKETSELECTIONSTRATEGY SQL operations, which map to setCustomValue and setBucketSelectionStrategy in LocalDocumentType. An authenticated user with only read access (e.g., a read-only API token) can submit these ALTER TYPE statements via the HTTP command endpoint to mutate a type's custom schema metadata and bucket-selection strategy, bypassing the documented updateSchema permission boundary and potentially corrupting schema metadata and record routing.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 1, 2026

Last Modified

August 3, 2026

Advisory Details (2)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

ArcadeDB before 26.7.2 Authentication Bypass via ALTER TYPE | Advisories | VulnCheck

https://www.vulncheck.com/advisories/arcadedb-before-authentication-bypass-via-alter-type
github Patch Available🟡 PoC Available

Read-only users can mutate type schema via ALTER TYPE CUSTOM and BUCKETSELECTIONSTRATEGY (missing UPDATE_SCHEMA check, sibling gap of GHSA-vg6x/GHSA-fxc7) · Advisory · ArcadeData/arcadedb · GitHub

https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-8vr5-263f-x5r3

Vendor Advisories for CVE-2026-67344(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-03 19:18 UTCEG score recompute
  2. 2026-08-03 19:18 UTCGHSA enrichment
  3. 2026-08-03 19:06 UTCEG score recompute
  4. 2026-08-03 19:05 UTCGHSA enrichment
  5. 2026-08-03 11:07 UTCEG score recompute
  6. 2026-08-03 11:06 UTCGHSA enrichment
  7. 2026-08-03 10:36 UTCEPSS rescore
  8. 2026-08-02 12:11 UTCEG score recompute
  9. 2026-08-02 12:11 UTCGHSA enrichment
  10. 2026-08-01 13:18 UTCEG score recompute
  11. 2026-08-01 12:43 UTCEG score recompute
  12. 2026-08-01 12:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67344?
CVE-2026-67344 is a medium vulnerability published on August 1, 2026. ArcadeDB before 26.7.2 fails to enforce the UPDATE_SCHEMA database permission on the ALTER TYPE ... CUSTOM and ALTER TYPE ... BUCKETSELECTIONSTRATEGY SQL operations, which map to setCustomValue and setBucketSelectionStrategy in LocalDocumentType. An authenticated user with only read access (e.g., a…
When was CVE-2026-67344 disclosed?
CVE-2026-67344 was first published in the National Vulnerability Database on August 1, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67344 actively exploited?
CVE-2026-67344 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.8% of all scored CVEs.
What is the CVSS score of CVE-2026-67344?
CVE-2026-67344 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-67344?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67344, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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