CVE-2026-79658 Ech0 before 5.0.1 Denial of Service via Accept-Language

Ech0 before 5.0.1 does not impose any size or shape limit on the Accept-Language header processed by its i18n middleware, which runs on every HTTP request. The header is passed unfiltered to go-i18n's NewLocalizer, which internally calls golang.org/x/text/language.ParseAcceptLanguage. The...

CVE-2026-79659 Ech0 before 4.7.3 Server-Side Request Forgery via fetchPeerConnectInfo

Ech0 before 4.7.3 contains a server-side request forgery vulnerability in the fetchPeerConnectInfo function that uses unvalidated HTTP requests instead of safe request methods with URL validation. Authenticated attackers can supply arbitrary URLs to access internal services and cloud metadata...

CVE-2026-79659

Ech0 before 4.7.3 is affected by a Server-Side Request Forgery (SSRF) vulnerability in the fetchPeerConnectInfo function. The root cause is the use of unvalidated HTTP requests instead of safe request methods with URL validation. An authenticated attacker can supply arbitrary URLs to reach intern...

PT-2026-81292

Ech0 before 4.4.3 protects the PUT /user endpoint with the profile:read scope, a read-only scope, but allows write operations including password changes. An attacker with an admin's profile:read access token can change the admin's password and login to obtain an unrestricted session token that...

PT-2026-81279

Ech0 versions before 4.7.3 expose guest commenter email addresses through public API endpoints due to improper JSON serialization tags on the Comment model. Unauthenticated attackers can harvest all commenter emails by calling the /api/comments and /api/comments/public endpoints without...

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...

PT-2026-79117

Name of the Vulnerable Software and Affected Versions lin-snow Ech0 versions prior to 5.4.2 Description A security flaw exists in the MD5Encrypt function within the internal/util/crypto/crypto.go file. This issue involves the use of a risky cryptographic algorithm, which could allow for remote...

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-2026-5603 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-2026-5626 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-2026-5172 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...