What is CVE-2026-75601?

CVE-2026-75601 is a medium-severity vulnerability in Static-Web-Server, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2026-08-26.

How severe is CVE-2026-75601?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Static-Web-Server

CVE-2026-75601

Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Through 2.43.0, instances with both basic-auth and metrics features enabled process the /metrics endpoint before the basic-auth check in src/handler.rs, allowing an unauthenticated remote attacker to retrieve Prometheus metrics that disclose virtual host names, request volumes, error rates, latency distributions, and active connections. This issue is fixed in version 2.44.0.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Static-web-server — versions < 2.44.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-75601?: CVE-2026-75601 is a medium-severity vulnerability in Static-Web-Server, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2026-08-26.
How severe is CVE-2026-75601?: Medium severity. CVSS v3 base score is 4.3 out of 10.