CVE-2026-102337
Webmin: SSRF exploit in Upload and Download and File Manager modules
Webmin is a web-based system administration tool for Unix-like servers. Prior to 2.652, untrusted users with access to the File Manager or Upload and Download modules can direct Webmin's server-side URL download functionality to non-public network addresses because download destinations are not restricted by resolved IP address. This allows requests to unauthenticated intranet services or cloud-provider instance metadata endpoints that are inaccessible from the user's own system. This issue is fixed in 2.652.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| webmin webmin |
< 2.652 (affected) | CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 4.9 medium |
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N | CNA: GitHub_M |
| 4.0 / 4.9 medium |
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/webmin/webmin/security/advisories/GHSA-x8qr-rx2g-f23gCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/webmin/webmin/pull/2789CNA: GitHub_M · x_refsource_MISC
- https://github.com/webmin/webmin/commit/5b6b43ac3d09ff582c1fa89d9589324f02320c42CNA: GitHub_M · x_refsource_MISC
- https://github.com/webmin/webmin/commit/e805319233c5a6837e97b35a329c6bb2cad82657CNA: GitHub_M · x_refsource_MISC
- https://github.com/webmin/webmin/commit/f62fd9e23adc9dc7c65ff75b31d10ae3e7eadc90CNA: GitHub_M · x_refsource_MISC
- https://github.com/webmin/webmin/releases/tag/2.652CNA: GitHub_M · x_refsource_MISC
- https://github.com/webmin/webmin/commit/5b6b43ac3d09ff582c1fa89d9589324f02320c42[email protected]
- https://github.com/webmin/webmin/commit/e805319233c5a6837e97b35a329c6bb2cad82657[email protected]
- https://github.com/webmin/webmin/commit/f62fd9e23adc9dc7c65ff75b31d10ae3e7eadc90[email protected]
- https://github.com/webmin/webmin/pull/2789[email protected]
- https://github.com/webmin/webmin/releases/tag/2.652[email protected]
- https://github.com/webmin/webmin/security/advisories/GHSA-x8qr-rx2g-f23g[email protected]
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.