Incorrect authorization in ChromaDB
Priority MEDIUM 40CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00237 14th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Chroma | ChromaDB | 0.5.0 and later | — | No fix listed | CNA |
| — | chromadb (PyPI) | 0.5.0 – 1.5.9 | — | No fix listed | GHSA-xph7-9rjv-w5fr |
- ChromaDB VendorChroma Affected 0.5.0 and later Fixed in — No fix listed CNA
- chromadb (PyPI) Vendor— Affected 0.5.0 – 1.5.9 Fixed in — No fix listed GHSA-xph7-9rjv-w5fr
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45831
- 2026-10-03 Alias added: GHSA-xph7-9rjv-w5fr
References
More Chromadb vulnerabilities
- TI-2026-33558 Code injection in ChromaDB CVSS 4.0CRITICAL 9.4
- TI-2026-33557 Authorization bypass in ChromaDB CVSS 4.0HIGH 8.8
- TI-2026-33555 Authorization bypass in ChromaDB CVSS 4.0HIGH 8.8
Sources
- CVE-2026-45831 · CVE Program
- CVE-2026-45831 · NVD
- FIRST EPSS
- GHSA-xph7-9rjv-w5fr · GitHub Advisory Database · CC BY 4.0
- CVE-2026-45831 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences