CVE-2026-92782: chroma · Incorrect Authorization
Affects chromaSource CVE Database V5
Not known to be exploited · CVSS 8.6 High.
Data as of 31 Oct 2026, 08:20 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| chroma-corechroma | Affected
| Fixed in– |
GitHubchroma-core/chromapkg:github/chroma-core/chromaOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is available, restrict access to trusted users and monitor for suspicious activity related to cross-tenant collection access.
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.
References
- github.com/chroma-core/chroma/issues/7462 (opens in a new tab)
- github.com/chroma-core/chroma (opens in a new tab)
- github.com/chroma-core/chroma/blob/1.5.9/rust/frontend/src/server.rs (opens in a new tab)
- github.com/chroma-core/chroma/blob/1.5.9/rust/frontend/src/get_collection_with_segments_provider.rs (opens in a new tab)
- vulncheck.com/advisories/chroma-through-1.5.9-authorization-bypass-via-collection-identifier (opens in a new tab)