CVE-2026-42336
Medium
Description
MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a server-side request forgery (SSRF) bypass in the OSS file service URL fetch functionality due to inconsistent DNS resolution between validation and actual request execution, allowing attackers to access internal network services. This vulnerability is fixed in 2.8.1.
SeverityMedium
CVSS5.1
Exploit probability—
ProductMaxKB
PublishedMay 26, 2026
First seenMay 26, 2026
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 1Panel-dev MaxKB | < 2.8.1 | — |
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