CVE-2026-42337

published 2026-05-26

CVE-2026-42337: MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a broken access control vulnerability in the OSS file service URL…

Priority P3 38 medium 5.3 CVSS 4.0

AV N AC L AT N PR L UI N VC L VI N VA N SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a broken access control vulnerability in the OSS file service URL fetch API (chat/api/oss/get_url). The endpoint uses application_id from the URL path without validating ownership, allowing attackers to perform operations under other applications’ policies. This vulnerability is fixed in 2.8.1.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
1panel-dev	maxkb	< 2.8.1	2.8.1

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CWE-862