# CVE-2026-102337: Webmin SSRF in URL download functionality

Source: https://junglewise.ai/threats/cve-2026-102337-webmin-is-a-web-based-system-administration-tool-for-unix-like  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-04. Updated: 2026-11-04  
License: CC BY 4.0 with a link back

CVE-2026-102337 · Severity: info · Published 2026-11-04

Webmin is a web-based administration tool for managing Unix-like servers. Untrusted users with access to the File Manager or Upload and Download modules can exploit a server-side request forgery vulnerability to access private network addresses and cloud metadata endpoints that would normally be inaccessible to them, potentially exposing sensitive configuration and credentials.

Technologies: [Webmin](https://junglewise.ai/threats/technologies/webmin). Vendors: [Webmin](https://junglewise.ai/threats/vendors/webmin).

## Quick answers

**Is CVE-2026-102337 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-102337 being exploited in the wild.

**How severe is CVE-2026-102337?** Informational severity, published 4 November 2026.

**Which products and versions are affected?** Webmin before 2.652.

**Is there a fix for CVE-2026-102337?** Yes: fixed in 2.652. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-102337 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-102337?** Check whether you run Webmin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.652

## Technical details

The File Manager and Upload/Download modules in Webmin do not restrict server-side URL downloads to public IP addresses, allowing untrusted users with module access to direct the server to fetch from non-public network ranges (RFC 1918, link-local, loopback) and cloud-provider metadata endpoints. This is a server-side request forgery (SSRF) vulnerability requiring module-level access to exploit. The fix restricts download destinations by resolved IP address, allowing root to maintain unrestricted access while enforcing public-address-only downloads for unprivileged users.

## Affected products

- Webmin Webmin before 2.652

## Timeline

- 2026-11-04: disclosed

## References

- [https://github.com/webmin/webmin/commit/5b6b43ac3d09ff582c1fa89d9589324f02320c42](https://github.com/webmin/webmin/commit/5b6b43ac3d09ff582c1fa89d9589324f02320c42)
- [https://github.com/webmin/webmin/commit/e805319233c5a6837e97b35a329c6bb2cad82657](https://github.com/webmin/webmin/commit/e805319233c5a6837e97b35a329c6bb2cad82657)

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