Answer in brief
CVE-2026-18705 records a Medium severity (CVSS 6.5) vulnerability in Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data. The current sources do not mark it as known exploited. The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps MongoDB/MongoDB Server (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:*:*:-:-:*:* | Not reported | Not reported |
| cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:*:*:-:-:*:* | Not reported | Not reported |
| cpe:2.3:a:mongodb:mongodb:9.1.0:alpha0:*:*:-:-:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| MongoDB/MongoDB Servergeneric | >=8.3.0 <8.3.8 || >=8.0 <8.0.29 || >=7.0 <7.0.40 | 8.3.8, 8.0.29, 7.0.40 |
Published upstream
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
An issue in MongoDB Server's Atlas Vector Search feature could allow an authenticated user with read access to one view to retrieve documents from a different, protected view over the same underlying collection. This is due to insufficient handling of certain user-supplied fields when constructing an internal request forwarded to the search process.
Quoted source text, attributed separately from HOL analysis.