Medium severity4.3GHSA Advisory· Published May 26, 2026· Updated May 26, 2026
CVE-2026-46430
CVE-2026-46430
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/xyproto/algernonGo | < 1.17.7 | 1.17.7 |
Affected products
1Patches
Vulnerability mechanics
References
2News mentions
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