CVE-2026-42337

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Source
https://cve.org/CVERecord?id=CVE-2026-42337
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42337.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42337
Aliases
  • GHSA-2jmj-gwvg-3gp2
Published
2026-05-26T20:19:40Z
Modified
2026-08-12T03:51:40Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
MaxKB: Broken Access Control in MaxKB OSS URL Fetch API
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42337.json"
}
References

Affected packages

Git / github.com/1panel-dev/maxkb

Affected ranges

Type
GIT
Repo
https://github.com/1panel-dev/maxkb
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6d3dae38450dbab3fd780498bc2b183a5ff4001f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.8.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.10.0-lts
v1.10.1-lts
v1.10.2-lts
v1.10.3-lts
v1.10.4-lts
v1.2.0
v1.2.1
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.7.0
v1.9.0
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.1.0
v2.2.0
v2.3.0
v2.4.0
v2.5.0
v2.6.0
v2.6.1
v2.7.0
v2.8.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42337.json"