CVE-2026-85664
Last modified
CVE-2026-85664 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| chroma-core | chroma | <= 1.5.9 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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