CVE-2026-46431
Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: * in github.com/xyproto/algernon
4.3
MEDIUM
CVSS 3.1
EPSS 0.22%
Description
Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: * in github.com/xyproto/algernon
How to fix CVE-2026-46431
To remediate CVE-2026-46431, upgrade the affected package to a fixed version below.
- Go/github.com/xyproto/algernon—upgrade to 1.17.7 or later
- —upgrade to 1.17.7 or later
Is CVE-2026-46431 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.17.7
- from 0, < 1.17.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |