CVE-2026-42337 — MaxKB: Broken Access Control in MaxKB OSS URL Fetch API
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/ap…
Published: 2026-05-26 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7