CVE-2026-34720 Zammad has an origin validation error in SSO mechanism

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the SSO mechanism in Zammad was not verifying the header originates from a trusted SSO proxy/gateway before applying further actions on it. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2026-34720 Zammad has an origin validation error in SSO mechanism

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the SSO mechanism in Zammad was not verifying the header originates from a trusted SSO proxy/gateway before applying further actions on it. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2026-34720

CVE-2026-34720 affects the Zammad web-based helpdesk system. Prior to versions 7.0.1 and 6.5.4, the SSO mechanism did not verify that the header originated from a trusted SSO proxy/gateway before applying subsequent actions, representing an origin-validation weakness. The issue is fixed in 7.0.1 ...

CVE-2026-34720 Zammad has an origin validation error in SSO mechanism

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the SSO mechanism in Zammad was not verifying the header originates from a trusted SSO proxy/gateway before applying further actions on it. This vulnerability is fixed in 7.0.1 and 6.5.4...

CVE-2025-71058

Dual DHCP DNS Server 8.01 improperly accepts and caches UDP DNS responses without validating that the response originates from a legitimate configured upstream DNS server. The implementation matches responses primarily by TXID and inserts results into the cache, enabling a remote attacker to inje...

CVE-2025-71058

Dual DHCP DNS Server 8.01 improperly accepts and caches UDP DNS responses without validating that the response originates from a legitimate configured upstream DNS server. The implementation matches responses primarily by TXID and inserts results into the cache, enabling a remote attacker to inje...

GHSA-X3F4-V83F-7WP2 Authorizer: Password reset token theft and full auth token redirect via unvalidated redirect_uri

Hi, I found that 6 endpoints in Authorizer accept a user-controlled redirecturi and append sensitive tokens to it without validating the URL against AllowedOrigins. The OAuth /app handler validates redirecturi at httphandlers/app.go:46, but the GraphQL mutations and verifyemail handler skip...

Authorizer: Password reset token theft and full auth token redirect via unvalidated redirect_uri

Hi, I found that 6 endpoints in Authorizer accept a user-controlled redirecturi and append sensitive tokens to it without validating the URL against AllowedOrigins. The OAuth /app handler validates redirecturi at httphandlers/app.go:46, but the GraphQL mutations and verifyemail handler skip...

Origin Validation Error

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Origin Validation Error in the UMA token endpoint when the azp claim from a client-supplied JWT is used to se...

Origin Validation Error

Overview signalk-server is an An implementation of a Signal K server for boats. Affected versions of this package are vulnerable to Origin Validation Error via the construction of the redirectUri and fullPostLogoutUri using an unvalidated Host header in the OIDC authentication and logout processe...

Origin Validation Error

Overview electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS. Affected versions of this package are vulnerable to Origin Validation Error in the session.setPermissionRequestHandler function. An attacker can gain unauthorized access to...

Origin Validation Error

Overview org.webjars.npm:electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS. Affected versions of this package are vulnerable to Origin Validation Error in the session.setPermissionRequestHandler function. An attacker can gain...

Rack::Request accepts invalid Host characters, enabling host allowlist bypass

Summary Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, including /, ?, , and @. Because req.host returns the full parsed value, applications that validate hosts using naive prefix or suffix checks can be...

GHSA-G2PF-XV49-M2H5 Rack::Request accepts invalid Host characters, enabling host allowlist bypass

Summary Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, including /, ?, , and @. Because req.host returns the full parsed value, applications that validate hosts using naive prefix or suffix checks can be...

Rack::Request accepts invalid Host characters, enabling host allowlist bypass

Summary Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, including /, ?, , and @. Because req.host returns the full parsed value, applications that validate hosts using naive prefix or suffix checks can be...

PT-2026-29913

Summary Rack::Request parses the Host header using an AUTHORITY regular expression that accepts characters not permitted in RFC-compliant hostnames, including /, ?, , and @. Because req.host returns the full parsed value, applications that validate hosts using naive prefix or suffix checks can be...

Weak Password Recovery Mechanism for Forgotten Password

Overview payload is a Node, React and MongoDB Headless CMS and Application Framework Affected versions of this package are vulnerable to Weak Password Recovery Mechanism for Forgotten Password in the password recovery flow. An attacker can gain unauthorized access to user accounts by exploiting...

Weak Password Recovery Mechanism for Forgotten Password

Overview Affected versions of this package are vulnerable to Weak Password Recovery Mechanism for Forgotten Password in the password recovery flow. An attacker can gain unauthorized access to user accounts by exploiting insufficient input validation of the origin of the password reset request...

Origin Validation Error

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Origin Validation Error via the GraphQL API endpoint ignoring the configured CORS allowOrigin restriction. An attacker can...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error in the ManagedWebAccessUtils.getServer function. An attacker can obtain authentication credentials by leveraging improper URL prefix matching during HTTP redirects, causing sensitive headers such as Bearer tokens...