Description
Chroma 1.5.9 fails to validate maximum bounds on HNSW index parameters max_neighbors, ef_construction, and ef_search in collection-create requests. Unauthenticated attackers can supply arbitrarily large parameter values to exhaust server memory and cause denial of service during index compaction.
No analysis available yet.
Remediation
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Tracking
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Advisories
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References
History
Fri, 04 Sep 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Chroma 1.5.9 fails to validate maximum bounds on HNSW index parameters max_neighbors, ef_construction, and ef_search in collection-create requests. Unauthenticated attackers can supply arbitrarily large parameter values to exhaust server memory and cause denial of service during index compaction. | |
| Title | Chroma 1.5.9 Unbounded HNSW Index Parameters Memory Exhaustion | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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Subscriptions
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-04T14:32:20.917Z
Reserved: 2026-09-04T13:32:28.993Z
Link: CVE-2026-85664
No data.
Status : Received
Published: 2026-09-04T15:17:44.097
Modified: 2026-09-04T15:17:44.097
Link: CVE-2026-85664
No data.
OpenCVE Enrichment
No data.
Weaknesses
-
CWE-770
Allocation of Resources Without Limits or Throttling