Improper input validation in MongoDB
CVE-2026-13057
An issue in the server’s Atlas Search integration allows an authenticated user to bypass per-user access controls. In sharded topologies, the $search and $searchMeta aggregation stages use internal routing that is normally populated only by the trusted router during sharded search planning. Due to insufficient input validation, an authenticated client can supply these fields directly.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Mongodb
- Mongodb Server — versions 8.0, 8.3.0, 8.2.0
Weakness classification (CWE)
References
- cna@mongodb.com (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-13057?
- CVE-2026-13057 is a medium-severity vulnerability in MongoDB, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-07-22.
- How severe is CVE-2026-13057?
- Medium severity. CVSS v3 base score is 5.3 out of 10.