CVE-2026-56779

MEDIUM

MaxKB < 2.10.0 - Server-Side Request Forgery via downloadCallbackUrl and download_url Parameters

Title source: cna

Description

MaxKB before 2.10.0 contains a server-side request forgery vulnerability in tool creation and update endpoints that allows authenticated users to make arbitrary server requests by supplying unvalidated downloadCallbackUrl and download_url parameters. Attackers with default workspace USER role can exploit this to access internal network services by providing malicious URLs to the ToolSerializer endpoints.

References (3)

Core 3

Core References

Exploit technical-description exploit

Researcher Disclosure

https://github.com/1Panel-dev/MaxKB/issues/6272

Patch patch

Patch Commit

https://github.com/1Panel-dev/MaxKB/commit/6c156afc656afa62ea4280e504a06ac1c9696b36

View Patch ZIP pw:eip

Third Party Advisory third-party-advisory

https://www.vulncheck.com/advisories/maxkb-server-side-request-forgery-via-downloadcallbackurl-and-download-url-parameters

Scores

CVSS v3 6.4

EPSS 0.0017

EPSS Percentile 6.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-918

Status published

Products (1)

1Panel-dev/MaxKB < 2.10.0

Published Jun 25, 2026

Tracked Since Jun 26, 2026