GO-2026-5809
Hysteria has an authenticated UDP ACL bypass that enables localhost and private-network UDP SSRF in github.com/apernet/hysteria/core
Quick fix
GO-2026-5809 — github.com/apernet/hysteria/core/v2: upgrade to the fixed version with the command below.
go get github.com/apernet/hysteria/core/v2@v2.9.2Details
Hysteria has an authenticated UDP ACL bypass that enables localhost and private-network UDP SSRF in github.com/apernet/hysteria/core.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: .
Are you affected?
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Affected packages
0No fixed version published yet for github.com/apernet/hysteria/core (go modules). Pin to a known-safe version or switch to an alternative.
0Fixed in: 2.9.2go get github.com/apernet/hysteria/core/v2@v2.9.2