GO-2026-5440

vendorUSosv

Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: * in github.com/xyproto/algernon

view advisory published 2026-06-25Licence: per source

Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: * in github.com/xyproto/algernon

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-46431US——
Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, the SSE event server's Access-Control-Allow-Origin response header was hardcoded to the wildcard * regardles…
02

references

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