CVE-2026-58399

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

CVE-2026-58399 @acastellon/auth has an authentication bypass via spoofable headers in validateToken()

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

CVE-2026-58399

The CVE affects @acastellon/auth (authentication control for microservices). Versions

CVE-2026-58399

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

BIT-ENVOY-2026-47220 Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

CVE-2026-58169

Vibe-Trading before 0.1.10 contains a DNS rebinding authentication bypass vulnerability that allows remote attackers to bypass bearer-token authentication by exploiting the server's trust of TCP peer addresses for loopback clients combined with missing Host header validation while binding to...

CVE-2026-58169 Vibe-Trading < 0.1.10 - Loopback Trust and Missing Host Validation Enable DNS-Rebinding Authentication Bypass and Remote Code Execution

Vibe-Trading before 0.1.10 contains a DNS rebinding authentication bypass vulnerability that allows remote attackers to bypass bearer-token authentication by exploiting the server's trust of TCP peer addresses for loopback clients combined with missing Host header validation while binding to...

EUVD-2026-40350

Vibe-Trading before 0.1.10 contains a DNS rebinding authentication bypass vulnerability that allows remote attackers to bypass bearer-token authentication by exploiting the server's trust of TCP peer addresses for loopback clients combined with missing Host header validation while binding to...

CVE-2026-58169

Vibe-Trading before 0.1.10 contains a DNS rebinding authentication bypass vulnerability that allows remote attackers to bypass bearer-token authentication by exploiting the server's trust of TCP peer addresses for loopback clients combined with missing Host header validation while binding to...

CVE-2026-58169 Vibe-Trading < 0.1.10 - Loopback Trust and Missing Host Validation Enable DNS-Rebinding Authentication Bypass and Remote Code Execution

Vibe-Trading before 0.1.10 contains a DNS rebinding authentication bypass vulnerability that allows remote attackers to bypass bearer-token authentication by exploiting the server's trust of TCP peer addresses for loopback clients combined with missing Host header validation while binding to...

undertow-core: Undertow HTTP Server Fails to Reject Malformed Host Headers Leading to Potential Cache Poisoning and SSRF

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without...

undertow-core: Undertow HTTP Server Fails to Reject Malformed Host Headers Leading to Potential Cache Poisoning and SSRF

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without...

PT-2026-53920

Name of the Vulnerable Software and Affected Versions Vibe-Trading versions prior to 0.1.10 Description The local API server trusts the TCP peer address to bypass the API AUTH KEY bearer-token check for loopback clients and lacks Host header validation while binding to 0.0.0.0 with credentialed...

PYSEC-2026-388 LiteLLM: Authentication Bypass via Host Header Injection

Impact A Host-header parsing flaw in the LiteLLM proxy could, under specific conditions, allow unauthenticated access to protected management routes. The auth layer derived the effective route from request.url.path in litellm/proxy/auth/authutils.py::getrequestroute, which Starlette reconstructs...

EUVD-2026-36602

Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection...

GHSA-9RC6-8CJV-RCVX Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection

Description The getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero validation of the Host header: go func getRedirectURLc gin.Context string scheme := "http://" referer := c.Request.Referer if...

Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection

Description The getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero validation of the Host header: go func getRedirectURLc gin.Context string scheme := "http://" referer := c.Request.Referer if...

CVE-2026-47220

A flaw was found in Envoy. A remote attacker can exploit this vulnerability by sending a request with a missing host header when the %REQUESTEDSERVERNAMEX:Y% is used in the log format and host-related options, such as HOSTFIRST or SNIFIRST, are specified. This can lead to a crash of the Envoy...

CVE-2026-47220

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

CVE-2026-47220

The CVE describes a crash in Envoy when using %REQUESTED_SERVER_NAME(X:Y)% in log format with host-related options (e.g., HOST_FIRST, SNI_FIRST) and the specified host header is missing in the request headers. Affected versions are 1.37.0 through 1.37.5 and 1.38.3. The vulnerability arises from t...