CVE-2026-18705 PUBLISHED

Improper Authorization in MongoDB Atlas Vector Search Allows Unauthorized Access to Protected View Data

Assigner: mongodb
Reserved: 03.08.2026 Published: 11.08.2026 Updated: 11.08.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Product Status

Vendor MongoDB
Product MongoDB Server
Versions Default: unaffected
  • affected from 8.3.0 to 8.3.8 (excl.)
  • affected from 8.0 to 8.0.29 (excl.)
  • affected from 7.0 to 7.0.40 (excl.)

References

Problem Types

  • CWE-807: Reliance on Untrusted Inputs in a Security Decision CWE