Critical severity · published May 18, 2026
CVE-2026-45829
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…
10.0
CVSS
15.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)15.1% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
ChromaDB · Chroma
1.0.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45829
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45829
github.com
https://github.com/chroma-core/chroma/issues/6717
www.hiddenlayer.com
https://www.hiddenlayer.com/research/chromatoast-served-pre-auth
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-45829
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2479623
security.access.redhat.com
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829.json
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