Ech0 < 4.2.8 - Server-Side Request Forgery

Ech0 before 4.2.8 exposes an unauthenticated SSRF vulnerability in GET /api/website/title. The websiteurl query parameter is fetched server-side without validating the target host or IP address. id: CVE-2026-35037 info: name: Ech0 4.2.8 - Server-Side Request Forgery author: fineman999 severity:...

CVE-2026-77151

A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an...

EUVD-2026-63578

A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an...

CVE-2026-77151 lin-snow Ech0 crypto.go MD5Encrypt risky encryption

A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an...

CVE-2026-77151

lin-snow Ech0 (versions up to 5.4.1 ) is affected by a cryptographic weakness in the MD5Encrypt function located in internal/util/crypto/crypto.go. The use of MD5 as a hashing algorithm is considered a risky cryptographic practice, as MD5 is known to be collision-prone and unsuitable for security...

CVE-2026-77151 lin-snow Ech0 crypto.go MD5Encrypt risky encryption

A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an...

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...

Ech0: ParseAcceptLanguage `_` separator bypass enables ~70x CPU amplification via Accept-Language header in i18n.Middleware

Summary Ech0's i18n middleware runs on every HTTP request and constructs a fresh goi18n.Localizer from the raw Accept-Language header without imposing any size or shape filter. goi18n.NewLocalizer calls golang.org/x/text/language.ParseAcceptLanguage on the value internally. The underlying parser...

GO-2026-5704 Ech0 has Unauthenticated Server-Side Request Forgery in Website Preview Feature in github.com/lin-snow/ech0

Ech0 has Unauthenticated Server-Side Request Forgery in Website Preview Feature in github.com/lin-snow/ech0...

GO-2026-5701 Ech0's Missing Authorization on System Logs Allows Non-Admin Information Disclosure in github.com/lin-snow/ech0

Ech0's Missing Authorization on System Logs Allows Non-Admin Information Disclosure 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-2026-5623 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-2026-5626 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-2026-5603 Ech0 has SSRF via DNS Resolution Bypass in Webhook URL Validation in github.com/lin-snow/ech0

Ech0 has SSRF via DNS Resolution Bypass in Webhook URL Validation 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 from vulnerability...

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-2026-5431 Ech0 Scope Bypass: profile:read Access Token Can Change Admin Password and Escalate to Unrestricted Session in github.com/lin-snow/ech0

Ech0 Scope Bypass: profile:read Access Token Can Change Admin Password and Escalate to Unrestricted Session 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...

GO-2026-5382 Ech0 Comment Panel Endpoints Missing RequireScopes Middleware — Scoped Access Token Bypass in github.com/lin-snow/ech0

Ech0 Comment Panel Endpoints Missing RequireScopes Middleware — Scoped Access Token Bypass 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...

GO-2026-5328 Ech0: Missing authorization on dashboard log endpoints allows low-privilege users to access sensitive system logs in github.com/lin-snow/ech0

Ech0: Missing authorization on dashboard log endpoints allows low-privilege users to access sensitive system logs 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...

GO-2026-5375 ech0's acess tokens with expiry=never cannot be revoked: logout panics, delete does not blacklist JTI in github.com/lin-snow/ech0

ech0's acess tokens with expiry=never cannot be revoked: logout panics, delete does not blacklist JTI in github.com/lin-snow/ech0...

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...