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.
CVSS 4.3EPSS 0.197%Risk 0.44
View source- Published
- 2026-05-26 17:16:50
- Affected versions
- <1.17.7
- Type
- Core software
- Last modified
- 2026-07-24 11:10:00
- Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N