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 ↗

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

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

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