chroma-client

GHSA-qp4x-pg53-7xh8

Malicious code in chroma-client (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.5.7`

## Source: kam193 (f74658ebb12f3a5cbf8577a768965f3ae81fbe8a156acc843ecffe3dfe2e5153)
This package does not carry any malicious payload yet, but uses exactly the same technique as other packages from the campaign aiming to mislead LLM security tools.


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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.


Campaign: 2026-09-openaii


Reasons (based on the campaign):


 - Downloads and executes a remote malicious script.


 - obfuscation


 - abuses-pth


 - cryptominer


 - infostealer


 - exfiltration-credentials


 - files-exfiltration


 - exfiltration-ssh-keys


 - persistence


 - typosquatting


 - covering-tracks

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/95bcd0e2369b583f1a22229754f69f3a27853e67/osv/malicious/pypi/chroma-client/MAL-2026-16143.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/chroma-client
- https://github.com/ossf/malicious-packages/blob/95bcd0e2369b583f1a22229754f69f3a27853e67/osv/malicious/pypi/chroma-client/MAL-2026-16143.json
- https://github.com/ossf/malicious-packages/blob/cdbbb71ae9f862bfd92e0526d7f94c3348024aab/osv/malicious/pypi/chroma-client/MAL-2026-16143.json
- https://pypi.org/project/chroma-client/0.5.7
- https://github.com/advisories/GHSA-qp4x-pg53-7xh8

Compromised versions (1)

= 0.5.7

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.