---
title: "CVE-2026-116469: MISP Guard - Broken Access Control"
description: "MISP Guard contains a case-sensitivity flaw in multiple policy enforcement checks caused by case-sensitive string comparisons in taxonomy tags, attribute categories, and sharing-group UUIDs, letting attackers bypass security policies and cause unauthorized data disclosure, exploit requires attacker to have event creation privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-116469/
---

# CVE-2026-116469 MISP Guard - Broken Access Control

MISP Guard contains a case-sensitivity flaw in multiple policy enforcement checks caused by case-sensitive string comparisons in taxonomy tags, attribute categories, and sharing-group UUIDs, letting attackers bypass security policies and cause unauthorized data disclosure, exploit requires attacker to have event creation privileges.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-116469)

## Details

Type

Broken Access Control

Impact

Information Disclosure

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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

Published

26 October 2026

Updated

26 October 2026

Weakness

[CWE-20](https://cwe.mitre.org/data/definitions/20.html)

## Vendor fix

Update to the latest version of MISP Guard that fixes case-sensitivity in policy enforcement checks.

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-2026-116469](https://nvd.nist.gov/vuln/detail/CVE-2026-116469)
- [https://github.com/MISP/misp-guard/commit/9868b1d93fc9cc40cc7c69ca11c86afd825bbc1c](https://github.com/MISP/misp-guard/commit/9868b1d93fc9cc40cc7c69ca11c86afd825bbc1c)

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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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