{"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":"2026-09-18","sourceUpdated":"2026-09-18T14:19:10.540","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"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-18T13:41:41.665Z","epss":0.00224,"epssPercentile":0.13251,"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":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}