{"id":"CVE-2026-93593","title":"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","summary":"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-privil…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-863"],"vendor":"ArcadeData","product":"arcadedb","affected":["arcadedb < 26.9.1"],"published":"2026-09-18","updated":"2026-09-22","sourceUpdated":"2026-09-22T15:17:23.783","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93593","references":[{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-wjhv-79gv-2pqg","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/arcadedb-before-26.9.1-timeseries-acl-bypass-via-type-permission","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-wjhv-79gv-2pqg","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00363,"epssPercentile":0.29983,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-22T14:20:30.640418Z"},"ingestedAt":"2026-09-18T13:41:41.665Z","slug":"CVE-2026-93593","body":"## Overview\n\nArcadeDB 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":209102,"id":"CVE-2026-93593","ts":1790089537586,"field":"exploit_available","old":"false","new":"true"}]}