---
title: "CVE-2026-93765: Mongoid - Unsafe Reflection"
description: "Mongoid contains an unsafe reflection vulnerability in the document persistence layer caused by unsafe key handling from unauthenticated input, letting attackers cause unintended method invocation and data removal, exploit requires unauthenticated input."
url: https://panop.io/threat-heartbeat/CVE-2026-93765/
---

# CVE-2026-93765 Mongoid - Unsafe Reflection

Mongoid contains an unsafe reflection vulnerability in the document persistence layer caused by unsafe key handling from unauthenticated input, letting attackers cause unintended method invocation and data removal, exploit requires unauthenticated input.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.51% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93765)

## Details

Type

Unsafe Reflection

Impact

Denial Of Service, Data Tampering

CVSS vector

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

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-470](https://cwe.mitre.org/data/definitions/470.html)

## Vendor fix

Update to the latest version of Mongoid.

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-2026-93765](https://nvd.nist.gov/vuln/detail/CVE-2026-93765)
- [https://jira.mongodb.org/browse/MONGOID-5973](https://jira.mongodb.org/browse/MONGOID-5973)

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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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