CVE-2026-18706CWE-416

CVE-2026-18706

Medium · published August 11, 2026

CVSS v3.1
6.6
EPSS
0%
Percentile
39.5
In the wild
Unconfirmed
What it is

An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, execution of unintended code.

The record
Technical detail
CVSS v3.1
6.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00467 · 39.5th percentile
Weakness
CWE-416 · Use After Free
Published
2026-08-11T23:17Z
Affected products (3)
ProductVersionsFixed in
mongodb/mongodb≥ 8.3.0, < 8.3.88.3.8
mongodb/mongodball versions—
mongodb/mongodball versions—
References (1)
https://jira.mongodb.org/browse/SERVER-128551 · [email protected]
EPSS history
Timeline
  • 11 AUG 18:34Z
    Use-After-Free in MongoDB $graphLookup Aggregation Stage Leads to Denial of Service and Potential Remote Code Execution
    cvelistv5