---
title: "CVE-2026-113870: MongoDB Compass - Stored XSS"
description: "MongoDB Compass contains a stored XSS caused by improper escaping of BSON values in view aggregation pipelines, letting attackers execute arbitrary code with user privileges when opening a specially crafted view."
url: https://panop.io/threat-heartbeat/CVE-2026-113870/
---

# CVE-2026-113870 MongoDB Compass - Stored XSS

MongoDB Compass contains a stored XSS caused by improper escaping of BSON values in view aggregation pipelines, letting attackers execute arbitrary code with user privileges when opening a specially crafted view.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-113870)

## Details

Type

Stored XSS

Impact

Client Script Exec

CVSS vector

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

Published

21 October 2026

Updated

22 October 2026

Weakness

[CWE-116](https://cwe.mitre.org/data/definitions/116.html)

## Vendor fix

Update to the latest version of MongoDB Compass where this issue is fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-113870](https://nvd.nist.gov/vuln/detail/CVE-2026-113870)
- [https://www.mongodb.com/docs/compass/release-notes/#mongodb-compass-14915](https://www.mongodb.com/docs/compass/release-notes/#mongodb-compass-14915)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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