Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck
CVE-2026-92782Chroma through 1.5.9 Authorization Bypass via Collection Identifier
High 8.1
In plain English
A high-severity incorrect authorization in chroma from chroma-core. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 60.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Chroma through 1.5.9 fails to validate tenant and database segments when resolving collections, allowing authenticated attackers to access collections from other tenants by knowing the collection identifier. Attackers can read, modify, and update records in foreign collections by issuing requests under their own tenant path, bypassing authorization checks.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| chroma-core | chroma | 0 – through 1.5.9 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- GitHub Issue #7462 issue-tracking
- https://github.com/chroma-core/chroma product
- the shared collection auth helper resolves the collection before checking the path technical-description
- the provider caches and returns by collection id without comparing the database technical-description
- VulnCheck Advisory: Chroma through 1.5.9 Authorization Bypass via Collection Identifier third-party-advisory