High severity7.1NVD Advisory· Published Aug 11, 2026· Updated Sep 16, 2026
CVE-2026-18688
CVE-2026-18688
Description
An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
1- jira.mongodb.org/browse/SERVER-129617nvdVendor AdvisoryIssue Tracking
News mentions
1- MongoDB Server: Thirteen Vulnerabilities Disclosed in Single BatchVypr Intelligence · Aug 11, 2026