CVE-2026-86934

CriticalCVSS 9.1/10Last modified Oct 5, 2026

Description

An authorization bypass vulnerability in the FileMaker Server Web Publishing Engine allowed requests containing an extended privilege header to bypass the disabled Custom Web Publishing with XML setting and access the XML Web Publishing interface. This vulnerability is addressed in FileMaker Server version 26.0.3.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-639

Affected software

VendorProductVersions
ClarisFileMaker Server< 26.0.3

References

Timeline

Published
Sep 23, 2026
Last modified
Oct 5, 2026
NVD status
Analyzed

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CVE-2026-86934: Critical severity, CVSS 9.1 | Vulnix