Code injection in ChromaDB
Priority HIGH 82CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true in the /api/v2/tenants/{tenant}/databases/{db}/collections endpoint.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.15149 96th 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
- Poc
- Automatable
- Yes
- 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 | 1.0.0 and later | — | No fix listed | CNA |
| — | chromadb (PyPI) | 1.0.0 – 1.5.9 | — | No fix listed | GHSA-f4j7-r4q5-qw2c |
- ChromaDB VendorChroma Affected 1.0.0 and later Fixed in — No fix listed CNA
- chromadb (PyPI) Vendor— Affected 1.0.0 – 1.5.9 Fixed in — No fix listed GHSA-f4j7-r4q5-qw2c
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Enterprise Linux AI (RHEL AI) 3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45829
- 2026-10-03 Alias added: GHSA-f4j7-r4q5-qw2c
- 2026-10-06 CVSS score changed · GHSA-f4j7-r4q5-qw2c
- 2026-10-06 Weakness changed · GHSA-f4j7-r4q5-qw2c
- 2026-10-06 5 new references · GHSA-f4j7-r4q5-qw2c
- 2026-10-25 EPSS moved to the 95th–99th percentile
References
Advisory 2
Other 7
- https://www.hiddenlayer.com/research/chromatoast-served-pre-auth
- https://github.com/chroma-core/chroma/issues/6717
- https://access.redhat.com/security/cve/CVE-2026-45829
- https://bugzilla.redhat.com/show_bug.cgi?id=2479623
- https://github.com/chroma-core/chroma
- https://github.com/pypa/advisory-database/tree/main/vulns/chromadb/PYSEC-2026-311.yaml
- https://pypi.org/project/chromadb
More Chroma 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-2026-33556 Incorrect authorization in ChromaDB CVSS 4.0HIGH 8.8
- TI-2026-33555 Authorization bypass in ChromaDB CVSS 4.0HIGH 8.8
- TI-2026-07752 Authorization bypass in ChromaDB CVSS 4.0HIGH 8.8
Sources
- CVE-2026-45829 · CVE Program
- CVE-2026-45829 · NVD
- FIRST EPSS
- GHSA-f4j7-r4q5-qw2c · GitHub Advisory Database · CC BY 4.0
- CVE-2026-45829 · 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