PT-2026-47159 · Perfree · Go-Fastdfs-Web

Din4 · Published 2026-06-06 · Updated 2026-06-06 · CVE-2026-11437

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions perfree go-fastdfs-web versions prior to 1.3.8

Description A flaw in the Installation Endpoint allows for remote server-side request forgery (SSRF), which occurs when an attacker can induce the server-side application to make requests to an unintended location. This issue is located in the checkServer() function within the '/install/checkServer' endpoint.

Recommendations Update to a version later than 1.3.7. As a temporary workaround, restrict access to the '/install/checkServer' endpoint to minimize the risk of exploitation.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-11437

Affected Products

Go-Fastdfs-Web

References · 7

• 🔥 https://notion.so/Server-Side-Request-Forgery-SSRF-in-go-fastdfs-web-Installation-Endpoint-35aea92a3c41806485ffeeac7e18126a · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-11437 · Security Note
• https://vuldb.com/submit/822726 · Note
• https://vuldb.com/vuln/369017/cti · Note
• https://twitter.com/VulmonFeeds/status/2063316751807393992 · Twitter Post
• https://vuldb.com/cve/CVE-2026-11437 · Note
• https://vuldb.com/vuln/369017 · Note