CVE-2026-13062

MEDIUM

MongoDB mongos Improper Validation of Internal Flags in Queryable Encryption Write Commands on Sharded Clusters

Title source: cna

Description

An authenticated user with write privileges on a Queryable Encryption-enabled collection may be able to modify internal encryption metadata fields that are intended to be server-controlled, by sending crafted write commands through the mongos router on a sharded cluster. This can result in corruption of encrypted query correctness.

References (1)

Core 1

Core References

https://jira.mongodb.org/browse/SERVER-127831

Scores

CVSS v3 6.5

EPSS 0.0012

EPSS Percentile 2.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-441

Status published

Products (4)

MongoDB/MongoDB Server 7.0 - 7.0.39

MongoDB/MongoDB Server 8.0 - 8.0.28

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