Static Web Server: Authentication bypass on /metrics endpoint when --basic-auth is enabled (CVE-2026-75601) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-75601

Static Web Server: Authentication bypass on /metrics endpoint when --basic-auth is enabled

Answer in brief

CVE-2026-75601 records a Unknown severity vulnerability in Static Web Server: Authentication bypass on /metrics endpoint when --basic-auth is enabled. The current sources do not mark it as known exploited. The current feed maps static-web-server/static-web-server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 26, 2026Updated Aug 26, 2026Source checked Aug 26, 2026First seen by HOL Aug 26, 2026Material review Aug 26, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps static-web-server/static-web-server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
static-web-server/static-web-servergeneric	< 2.44.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for static-web-server/static-web-server.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 26, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.