CVE-2026-18688

Published: Aug 11, 2026Modified: Oct 23, 2026

7.1

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: CNA (Secondary)

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.

Affected (7)

Products: Mongodb: Mongodb

Mongodb

1 product

Mongodb

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Mongodb Mongodb	7.0.0 ≤ version < 7.0.40
Mongodb Mongodb	8.0.0 ≤ version < 8.0.29
Mongodb Mongodb	8.2.0 ≤ version ≤ 8.2.12
Mongodb Mongodb	8.3.0 ≤ version < 8.3.8
Mongodb Mongodb	Version 9.0.0 alpha0
Mongodb Mongodb	Version 9.0.0 alpha1
Mongodb Mongodb	Version 9.1.0 alpha0

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (1)

https://jira.mongodb.org/browse/SERVER-129617

Source: cna@mongodb.com

Vendor AdvisoryIssue Tracking

Timeline

No history available yet.