What is CVE-2026-6107?

CVE-2026-6107 is a low-severity vulnerability in 1panel-Dev Maxkb, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-12.

How severe is CVE-2026-6107?

Low severity. CVSS v3 base score is 3.5 out of 10.

RCE in 1panel-Dev Maxkb

CVE-2026-6107

A flaw has been found in 1Panel-dev MaxKB up to 2.6.1. This issue affects some unknown processing of the file apps/common/middleware/chat_headers_middleware.py of the component ChatHeadersMiddleware. This manipulation of the argument Name causes cross site scripting. Remote exploitation of the attack is possible. Upgrading to version 2.8.0 is capable of addressing this issue. Patch name: 026a2d623e2aa5efa67c4834651e79d5d7cab1da. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

Affected products

1panel-dev Maxkb — versions 2.6.0, 2.6.1, 2.8.0

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (issue-tracking, patch)
cna@vuldb.com (patch)
cna@vuldb.com (patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-6107?: CVE-2026-6107 is a low-severity vulnerability in 1panel-Dev Maxkb, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-12.
How severe is CVE-2026-6107?: Low severity. CVSS v3 base score is 3.5 out of 10.