{"cve":"CVE-2026-45831","nvd":{"published":"2026-06-12T16:16:28.797","modified":"2026-10-26T11:10:00.157","status":"Analyzed","description":"The SimpleRBACAuthorizationProvider authorization provider in versions 0.5.0 or later of the ChromaDB Python project evaluates whether a user holds a given permission but never checks which tenant, database, or collection that permission applies to allowing users to perform cross tenant actions.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","score":8.8},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-863"],"references":["https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-3"],"products":["trychroma:chromadb"],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-45831","score":0.00237,"percentile":0.14562,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-xph7-9rjv-w5fr","url":"https://osv.dev/vulnerability/GHSA-xph7-9rjv-w5fr","summary":"ChromaDB's SimpleRBACAuthorizationProvider doesn't check which tenant, database, or collection a permission applies to","modified":"2026-09-10T12:25:45.510140945Z","packages":[{"ecosystem":"PyPI","name":"chromadb","purl":"pkg:pypi/chromadb","ranges":[">=0.5.0 <=1.5.9"],"fixed":[]}]},{"id":"PYSEC-2026-3815","url":"https://osv.dev/vulnerability/PYSEC-2026-3815","summary":"ChromaDB's SimpleRBACAuthorizationProvider doesn't check which tenant, database, or collection a permission applies to","modified":"2026-09-10T12:15:06.245023955Z","packages":[{"ecosystem":"PyPI","name":"chromadb","purl":"pkg:pypi/chromadb","ranges":[">=0.5.0 <=1.5.9"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}