CVE-2026-52101 Details
Description
An issue in andreimarcu linux-server v.1.0 through v.2.3.8 allows a remote attacker to obtain sensitive information via the function uploadRemote function in upload.go
A server-side request forgery (SSRF) vulnerability has been identified in Linx-Server versions 1.0 through 2.3.8. The issue arises in the 'uploadRemote' function within 'upload.go', where the server fetches user-supplied URLs via the 'http.Get()' method without proper validation. This flaw allows remote attackers to access internal resources or cloud metadata endpoints, potentially leading to the exposure of sensitive information. The vulnerability is particularly concerning as the fetched data can be saved as a public file, accessible to anyone.
It is recommended to block internal IP ranges and cloud metadata addresses, require authentication for remote uploads by default, restrict outbound targets to a whitelist instead of allowing arbitrary URLs, and avoid exposing fetched content as a public file without access controls.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 14, 2026CISA-ADP
Assessed Jul 15, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nk7667/-linx-server-vulnerability-report/blob/main/CVE-2026-52101.md | CISA-ADP | ExploitTechnical Analysis |
| https://github.com/andreimarcu/linx-server | [email protected] | ProductSource CodeVendor |
| https://github.com/nk7667/-linx-server-vulnerability-report/blob/main/CVE-2026-52101.md | [email protected] | ExploitTechnical Analysis |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| andreimarcu linx-server | >= 1.0, <= 2.3.8 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | CISA-ADP |
| Jul 14, 2026 | New CVE Received | [email protected] |