CVE-2026-42337

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.

PUBLISHED Reserved 2026-04-26 | Published 2026-05-26 | Updated 2026-05-27 | Assigner GitHub_M

Problem types

CWE-862: Missing Authorization

Product status

References

github.com/.../MaxKB/security/advisories/GHSA-2jmj-gwvg-3gp2

cve.org (CVE-2026-42337)

nvd.nist.gov (CVE-2026-42337)

Download JSON