CVE-2026-115190 Mautic - Insecure Deserialization

Mautic contains an insecure deserialization vulnerability caused by unsafe deserialization of segment filters and custom field properties, letting attackers with write access execute arbitrary code and manipulate data.

CVSS base score 8.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution, Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
26 October 2026
Updated
27 October 2026
Weakness
CWE-502

Vendor fix

Update to the latest version with safe deserialization fixes.

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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