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VulnerabilityPublished Updated

CVE-2026-93593: ArcadeData arcadedb · Incorrect Authorization

Affects ArcadeData arcadedbSource CVE Database V5

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Not known to be exploited · CVSS 8.6 High : upgrade to 26.9.1 soon.

Data as of 1 Nov 2026, 22:58 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 26.9.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Upgrade arcadedb and arcadedata/arcadedb to 26.9.1.

Affected software

ProductAffectedFixed in
ArcadeDataarcadedbAffected
  • <26.9.1
Fixed in
  • 26.9.1
GitHubarcadedata/arcadedbpkg:github/arcadedata/arcadedbOther threatsAffected
  • <26.9.1
Fixed in
  • 26.9.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to ArcadeDB version 26.9.1 or later, where this authorization issue has been fixed. No other mitigation guidance is provided; applying the official fix is recommended.

Description

ArcadeDB before 26.9.1 fails to enforce security-group types ACL entries for TimeSeries types because the ACL resolver builds permissions from bucket IDs, but TimeSeries types do not own normal record buckets. An authenticated low-privilege user can read or insert TimeSeries samples despite explicit deny rules by exploiting the missing type-name-based access check that causes permission lookups to fail open.

References

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