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CVE-2026-104005

7.1 high SSVC exploitation: none Awaiting Analysis
NVD · CVE.org

A security issue was discovered in MongoDB mongos (the sharded cluster router) where an authenticated user with readWrite privileges could crash the mongos process by crafting a specially formed aggregation pipeline. The issue leverages an internal aggregation stage that lacks proper authorization checks despite being intended for internal use, allowing a subsequent stage to be forced to execute on the router under conditions it was not designed to handle. This results in an unhandled fatal error that causes the mongos process to immediately abort, resulting in denial of service for all clients routed through the affected mongos instance.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 2

  1. StatusReceived → Awaiting AnalysisNVD modified 2026-10-15 20:38
  2. First seenCVSS 7.1NVD modified 2026-10-13 17:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1