CVE-2026-86934
CVSS v3
9.1
CRITICAL
EPSS Score
0.3 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2026-09-23
- Last Modified
- 2026-09-24
Frequently asked questions
What is CVE-2026-86934?
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.
Is CVE-2026-86934 actively exploited?
Active exploitation of CVE-2026-86934 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-86934?
CVE-2026-86934 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2026-86934 affecting your environment?
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