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CVE-2026-102337Webmin: 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.
4.9 MEDIUMEPSS 0.51%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 4.9 | MEDIUM | 4.0GitHub_M (CNA) | 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 |
Details
- CVE ID
- CVE-2026-102337
- Status
- Deferred
- Assigner (CNA)
- GitHub_M
- Published
- Nov 4, 2026
- Last modified
- 2026-11-04 23:17 UTC
- Weaknesses
- CWE-918 · Server-Side Request Forgery (SSRF)
Affected Products
As published by the CNA in the CVE record.
webminwebmin1 version range
- < 2.652
References
- github.com https://github.com/webmin/webmin/commit/5b6b43ac3d09ff582c1fa89d9589324f02320c42
- github.com https://github.com/webmin/webmin/commit/e805319233c5a6837e97b35a329c6bb2cad82657
- github.com https://github.com/webmin/webmin/commit/f62fd9e23adc9dc7c65ff75b31d10ae3e7eadc90
- github.com https://github.com/webmin/webmin/pull/2789
- github.com https://github.com/webmin/webmin/releases/tag/2.652
- github.com https://github.com/webmin/webmin/security/advisories/GHSA-x8qr-rx2g-f23g