What’s Vulnerable › Vulnerabilities

CVE-2025-41368: Multiple vulnerabilities in Small HTTP server by Smallsrv

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-22

Description

Problem in the Small HTTP Server v3.06.36 service. An authenticated path traversal vulnerability in '/' allows remote users to bypass the intended restrictions of SecurityManager and display any file if they have the appropriate permissions outside the document root configured on the server.

Affected products

• Smallsrv Small HTTP: from 3.06.36 before 3.06.38 — fixed in 3.06.38

How to fix

Upgrade to a fixed version: Smallsrv Small HTTP 3.06.38. Check the vendor advisory for mitigations.

References

• https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-small-http-server-smallsrv

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