How severe is CVE-2026-45833?

CVE-2026-45833 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-45833 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45833?

CVE-2026-45833 affects Trychroma Chromadb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-45833?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-45833 have an EU (EUVD) identifier?

Yes. CVE-2026-45833 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36484.

When was CVE-2026-45833 published?

CVE-2026-45833 was published on 2026-06-12 and last updated on 2026-06-30.

CVE-2026-45833

CVE-2026-45833 is a high-severity vulnerability in Trychroma Chromadb with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 9.4
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36484
Weakness: CWE-94
Affected product: Trychroma Chromadb
Published: 2026-06-12
Last modified: 2026-06-30

Description

A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated 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/default_tenant/databases/default_database/collections/{collection_id} if they have the UPDATE_COLLECTION permission.

Frequently asked questions

What is CVE-2026-45833?: A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated 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/default_tenant/databases/default_database/collections/{collection_id} if they have the UPDATE_COLLECTION permission.
How severe is CVE-2026-45833?: CVE-2026-45833 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-45833 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45833?: CVE-2026-45833 affects Trychroma Chromadb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-45833?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-45833 have an EU (EUVD) identifier?: Yes. CVE-2026-45833 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36484.
When was CVE-2026-45833 published?: CVE-2026-45833 was published on 2026-06-12 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:trychroma:chromadb:*:*:*:*:*:python:*:*

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CVE-2026-45830 — High (CVSS 8.8): A lack of authorization validation in version 0.4.17 or later of the ChromaDB Python project allows any authenticated…

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