Authorization bypass in ChromaDB
Priority MEDIUM 40CWE-639Published · 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
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00279 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8828
- 2026-10-03 Alias added: GHSA-843m-rfxf-6v2g
References
More Chroma vulnerabilities
- TI-2026-33554 Code injection in ChromaDB CVSS 4.0CRITICAL 10.0
- 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-2026-33556 Incorrect authorization in ChromaDB CVSS 4.0HIGH 8.8
- TI-2026-33555 Authorization bypass in ChromaDB CVSS 4.0HIGH 8.8
Sources
- CVE-2026-8828 · CVE Program
- CVE-2026-8828 · NVD
- FIRST EPSS
- GHSA-843m-rfxf-6v2g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences