GO-2026-5981 Ech0: ParseAcceptLanguage `_` separator bypass enables ~70x CPU amplification via Accept-Language header in i18n.Middleware in github.com/lin-snow/ech0

Ech0: ParseAcceptLanguage separator bypass enables 70x CPU amplification via Accept-Language header in i18n.Middleware in github.com/lin-snow/ech0...

GO-2026-5626 Ech0 comment model's Email field returned on public /api/comments endpoints in github.com/lin-snow/ech0

Ech0 comment model's Email field returned on public /api/comments endpoints in github.com/lin-snow/ech0...

GO-2026-5623 Ech0's Unauthenticated Like Endpoint Enables Arbitrary Engagement Metric Inflation in github.com/lin-snow/ech0

Ech0's Unauthenticated Like Endpoint Enables Arbitrary Engagement Metric Inflation in github.com/lin-snow/ech0...

GO-2026-5531 Ech0's OAuth redirect URI validation ignores path component, enables exchange-code theft in github.com/lin-snow/ech0

Ech0's OAuth redirect URI validation ignores path component, enables exchange-code theft in github.com/lin-snow/ech0...

GO-2026-5172 Ech0 has Stored XSS via SVG Upload and Content-Type Validation Bypass in File Upload in github.com/lin-snow/ech0

Ech0 has Stored XSS via SVG Upload and Content-Type Validation Bypass in File Upload in github.com/lin-snow/ech0. 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...

GO-2026-5259 Ech0 has Server-Side Request Forgery (SSRF) via Connect Handler fetchPeerConnectInfo in github.com/lin-snow/ech0

Ech0 has Server-Side Request Forgery SSRF via Connect Handler fetchPeerConnectInfo in github.com/lin-snow/ech0...

GO-2026-5123 Ech0: Scoped admin access tokens can bypass least-privilege controls on privileged endpoints, including backup export in github.com/lin-snow/ech0

Ech0: Scoped admin access tokens can bypass least-privilege controls on privileged endpoints, including backup export in github.com/lin-snow/ech0. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this ...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the validateWebhookURL function. An administrator can access internal network resources and cloud metadata endpoints by submitting webhook URLs that use hostnames resolving to private IP addresses,...

GO-2026-4838 Ech0 authenticated user-list exposed data via public `/api/allusers` endpoint in github.com/lin-snow/ech0

Ech0 authenticated user-list exposed data via public /api/allusers endpoint in github.com/lin-snow/ech0...