CVE-2026-45829
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 15.1% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 15.1% · EPSS, next 30 days
- Weakness
- CWE-94 · Code injection
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 10.0
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
- https://github.com/chroma-core/chroma/issues/6717
- https://www.hiddenlayer.com/research/chromatoast-served-pre-auth
- https://access.redhat.com/security/cve/CVE-2026-45829
- https://bugzilla.redhat.com/show_bug.cgi?id=2479623
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829.json
- https://www.hiddenlayer.com/research/chromatoast-served-pre-auth