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.
History

Wed, 27 May 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 27 May 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared 1panel
1panel maxkb
Vendors & Products 1panel
1panel maxkb

Tue, 26 May 2026 20:30:00 +0000

Type Values Removed Values Added
Description 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.
Title MaxKB: Broken Access Control in MaxKB OSS URL Fetch API
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 5.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-05-26T20:19:40.844Z

Updated: 2026-05-27T13:23:02.787Z

Reserved: 2026-04-26T13:26:14.514Z

Link: CVE-2026-42337

cve-icon Vulnrichment

Updated: 2026-05-27T13:22:59.369Z

cve-icon NVD

Status : Deferred

Published: 2026-05-26T21:16:37.317

Modified: 2026-05-27T19:41:21.417

Link: CVE-2026-42337

cve-icon Redhat

No data.