Skip to content
CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-46430

Algernon: Auto-refresh SSE event server binds to all interfaces by default on Linux/macOS

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, the SSE event server bound to 0.0.0.0:5553 on Linux/macOS by default because the platform-dependent host default in engine/flags.go:39-46 set host = "" for non-Windows, and utils.JoinHostPort("", ":5553") resolves to ":5553". This vulnerability is fixed in 1.17.7.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

xyproto algernon

  • < 1.17.7affected

References