Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.1%
CVSS Severity
CVSS v3 Score 9.1
Products affected by CVE-2026-86934
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cpe:2.3:a:claris:filemaker_server:-
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cpe:2.3:a:claris:filemaker_server:19.1.2
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cpe:2.3:a:claris:filemaker_server:19.2.1
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cpe:2.3:a:claris:filemaker_server:19.3.1
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cpe:2.3:a:claris:filemaker_server:19.3.2
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cpe:2.3:a:claris:filemaker_server:19.4.1
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cpe:2.3:a:claris:filemaker_server:20.1.1
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cpe:2.3:a:claris:filemaker_server:20.1.2
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cpe:2.3:a:claris:filemaker_server:20.2.1
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cpe:2.3:a:claris:filemaker_server:20.3.1
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cpe:2.3:a:claris:filemaker_server:20.3.2
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cpe:2.3:a:claris:filemaker_server:21.0.1
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cpe:2.3:a:claris:filemaker_server:21.0.2
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cpe:2.3:a:claris:filemaker_server:21.1.1
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cpe:2.3:a:claris:filemaker_server:21.1.3
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cpe:2.3:a:claris:filemaker_server:21.1.4
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cpe:2.3:a:claris:filemaker_server:21.1.5
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cpe:2.3:a:claris:filemaker_server:21.1.6
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cpe:2.3:a:claris:filemaker_server:21.1.7
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cpe:2.3:a:claris:filemaker_server:22.0.1
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cpe:2.3:a:claris:filemaker_server:22.0.2
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cpe:2.3:a:claris:filemaker_server:22.0.4
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cpe:2.3:a:claris:filemaker_server:22.0.5
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cpe:2.3:a:claris:filemaker_server:22.0.6
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cpe:2.3:a:claris:filemaker_server:26.0.1