CVE-2026-18704 Affecting mongod-8.3-cis-hardened package, versions <8.3.8-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-MONGOD83CISHARDENED-19889452
  • published18 Sept 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

CVE-2026-18704  (opens in a new tab)

How to fix?

Upgrade Minimos:latest mongod-8.3-cis-hardened to version 8.3.8-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mongod-8.3-cis-hardened package and not the mongod-8.3-cis-hardened package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

An issue in MongoDB Server's aggregation framework could allow an authenticated user with only read privileges to perform write operations against collections they should not be able to modify. This is due to an internal-use aggregation stage being reachable by external clients without an appropriate authorization check on its embedded operations.