CVE-2026-13063

MEDIUM

MongoDB Server - Libmongocrypt Improper Input Validation Leading to Process Termination

Title source: rule

Description

An authenticated user with standard read/write privileges can cause the mongod process to terminate due to an out-of-memory condition by sending a crafted aggregation command. MongoDB's libmongocrypt library insufficiently validates payload-supplied values, which can result in an excessively large memory allocation.

References (1)

Core 1

Core References

https://jira.mongodb.org/browse/SERVER-127737

Scores

CVSS v3 4.3

EPSS 0.0021

EPSS Percentile 11.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-190

Status published

Products (2)

MongoDB/MongoDB Server 8.2.0 - 8.2.12

MongoDB/MongoDB Server 8.3.0 - 8.3.7

Published Jul 22, 2026

Tracked Since Jul 23, 2026