ChromaDB's SimpleRBACAuthorizationProvider doesn't check which tenant, database, or collection a permission applies to
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | chromadb | >= 0.5.0, <= 1.5.9 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-45831
- https://github.com/chroma-core/chroma/issues/7588
- https://github.com/chroma-core/chroma/pull/7602
- https://github.com/chroma-core/chroma
- https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-3
- https://pypi.org/project/chromadb
- https://github.com/advisories/GHSA-xph7-9rjv-w5fr
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-863- Platform
- Python (PyPI)
- Package
chromadb- Disclosed
- 12.06.2026
- Updated
- 11.10.2026 15:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3815 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-xph7-9rjv-w5fr - CC BY 4.0
Vulnerability history: chromadb
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 05.2026 06.2026
- Without a fix
- 4
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 2
Disclosures per year
- 2026: 4
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ChromaDB's SimpleRBACAuthorizationProvider doesn't check which tenant, database, or collection a permission applies to this entry
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