{"id":"CVE-2026-56779","title":"MaxKB < 2.10.0 - Server-Side Request Forgery via downloadCallbackUrl and download_url Parameters","summary":"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_ur…","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-918"],"vendor":"1Panel-dev","product":"MaxKB","affected":["MaxKB < 2.10.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-30T03:27:15.336872Z"},"exploitAvailable":true,"published":"2026-06-25","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:06:21.953Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56779","references":[{"url":"https://github.com/1Panel-dev/MaxKB/issues/6272","label":"Researcher Disclosure"},{"url":"https://github.com/1Panel-dev/MaxKB/commit/6c156afc656afa62ea4280e504a06ac1c9696b36","label":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/maxkb-server-side-request-forgery-via-downloadcallbackurl-and-download-url-parameters"}],"tags":["cve.org","exploit-available"],"epss":0.00294,"epssPercentile":0.22189,"ingestedAt":"2026-11-08T14:51:22.336Z","slug":"CVE-2026-56779","body":"## Overview\n\nMaxKB 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.\n\n## Affected\n\n- `MaxKB < 2.10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":35.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}