CVE-2026-86930

An out-of-bounds read vulnerability in FileMaker Server for Linux allowed an attacker uploading a specially crafted image file to a container field to disclose process memory during thumbnail generation in FileMaker WebDirect. This vulnerability is addressed in FileMaker Server version 26.0.3.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.claris.com/s/answerview?anum=000049218&language=en_US	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:claris:filemaker_server:*:*:*:*:*:*:*:*

History

05 Oct 2026, 18:18

Type	Values Removed	Values Added
References	~~() https://support.claris.com/s/answerview?anum=000049218&language=en_US -~~	() https://support.claris.com/s/answerview?anum=000049218&language=en_US - Vendor Advisory
CPE		cpe:2.3:a:claris:filemaker_server::::::::
First Time		Claris Claris filemaker Server

24 Sep 2026, 15:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.1
CWE		CWE-125

23 Sep 2026, 18:22

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-23 18:17

Updated : 2026-10-05 18:18

NVD link : CVE-2026-86930

Mitre link : CVE-2026-86930

CVE.ORG link : CVE-2026-86930

JSON object : View

Products Affected

claris

filemaker_server

CWE

CWE-125

Out-of-bounds Read

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