CWE-346
CVEs classified under CWE-346, newest first.
258 CVEsRSS
CVE-2023-49899Critical· 9.8An unauthenticated remote attacker can execute any command on the affected device due to not correctly verifying the origin of a communication channel.
An unauthenticated remote attacker can execute any command on the affected device due to not correctly verifying the origin of a communication channel.
CVE-2026-59950HighMCP Python SDK: WebSocket server transport does not support Host/Origin validation
MCP Python SDK: WebSocket server transport does not support Host/Origin validation
CVE-2026-56181High· 8.3Windows Network Address Translation (NAT) Spoofing Vulnerability
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
CVE-2026-54069CriticalPoCSiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist
SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist
CVE-2026-59883Medium· 4.7Guzzle is an extensible PHP HTTP client
Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix m…
CVE-2026-55438Medium· 5.8Coder's workspace app CORS origin check can be bypassed via UUID-based subdomain spoofing
Coder's workspace app CORS origin check can be bypassed via UUID-based subdomain spoofing
CVE-2026-55487High· 7.5pnpm: Manifest identity spoof satisfies allowBuilds and runs attacker lifecycle
pnpm: Manifest identity spoof satisfies allowBuilds and runs attacker lifecycle
GHSA-9g5q-2w5x-hmxfHighchi Middleware Vulnerable to Potential IP Spoofing via `X-Forwarded-For` Header in `Request.RemoteAddr` Resolution
chi Middleware Vulnerable to Potential IP Spoofing via `X-Forwarded-For` Header in `Request.RemoteAddr` Resolution
CVE-2026-54665Medium· 5.3Apache NiFi fails to validate proxy host headers when constructing qualified URLs
Apache NiFi fails to validate proxy host headers when constructing qualified URLs
CVE-2026-46611Medium· 5.3Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack
Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack
CVE-2026-55767Medium· 5.8guzzlehttp/guzzle: Dot-Only Cookie Domains Match All Hosts
guzzlehttp/guzzle: Dot-Only Cookie Domains Match All Hosts
GHSA-v52w-28xh-v562HighKozou: Unauthenticated MCP HTTP server and bundled dev-stack hardening (DNS-rebinding, request-body limits, read-only reads, default network exposure)
Kozou: Unauthenticated MCP HTTP server and bundled dev-stack hardening (DNS-rebinding, request-body limits, read-only reads, default network exposure)
GHSA-x845-2f78-7v36High· 8.6Blocky DNSSEC validation bypass and validation-cache scope pollution
Blocky DNSSEC validation bypass and validation-cache scope pollution
CVE-2026-55791CriticalCraft CMS: Blind SSRF and Arbitrary JavaScript Injection via Host Header Poisoning in actionResourceJs
Craft CMS: Blind SSRF and Arbitrary JavaScript Injection via Host Header Poisoning in actionResourceJs
CVE-2026-55660HighTinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover
TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover
GHSA-v3f4-w7r7-v3hmHighUni-CLI: Legacy HTTP MCP transport accepted browser-originated localhost requests
Uni-CLI: Legacy HTTP MCP transport accepted browser-originated localhost requests
GHSA-f4xh-w4cj-qxq8High· 7.7LangSmith SDK TracingMiddleware: Arbitrary server-side file read
LangSmith SDK TracingMiddleware: Arbitrary server-side file read
GHSA-869j-r97x-hx2gHighAnki's local HTTP server does not sufficiently validate requests
Anki's local HTTP server does not sufficiently validate requests
CVE-2026-55669Medium· 4.2ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider
ZITADEL: Missing Token Audience Validation (`aud`) in JWT IdP Provider
GHSA-vmf9-xx9w-86wxHigh· 8.3PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools
PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools
CVE-2026-54007HighOpen WebUI: Cross-origin postMessage confirmation bypass via action:submit
Open WebUI: Cross-origin postMessage confirmation bypass via action:submit
CVE-2026-9595Medium· 5.3webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies
webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies
CVE-2026-6734High· 7.5undici: undici: Information disclosure and data integrity issues due to incorrect Socks5ProxyAgent connection routing (CVE-2026-6734)
A flaw was found in undici. When using Socks5ProxyAgent, undici incorrectly reuses a single connection pool across different origins. This can lead to cross-origin request routing, where sensitive credentials and data intended for one dest…
CVE-2026-47825High· 8.6Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certain configuration scenarios
Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certain configuration scenarios. This affects both the WebMVC and WebFlux Gateway Servers. Affected versions: Spring Cloud Gateway …
CVE-2026-50168High@angular/platform-server: URL Parser Differential leading to SSRF Allowlist Bypass
@angular/platform-server: URL Parser Differential leading to SSRF Allowlist Bypass
GHSA-j9gf-vw2f-9hrwHigh· 8.1Appsmith: Configuration-dependent origin validation bypass in password reset and email verification link generation
Appsmith: Configuration-dependent origin validation bypass in password reset and email verification link generation
CVE-2026-47691High· 8.7Netty is a network application framework for development of protocol servers and clients
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's `DnsResolveContext` insufficiently validates the bailiwick of NS records, enabling DNS Ca…
CVE-2026-45674High· 8.7PoCNetty is a network application framework for development of protocol servers and clients
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DnsResolveContext fails to validate the origin (bailiwick) of CNAME records in DNS respon…
CVE-2026-41700High· 8.1Spring for GraphQL applications that have enabled the WebSocket transport are vulnerable to Cross-Site WebSocket Hijacking
Spring for GraphQL applications that have enabled the WebSocket transport are vulnerable to Cross-Site WebSocket Hijacking. An attacker can trick an authenticated user into visiting a malicious page, allowing the attacker to execute arbi…
CVE-2026-48022Medium· 6.5@hapi/wreck: Sensitive credential headers leak across cross-port and cross-scheme redirects
@hapi/wreck: Sensitive credential headers leak across cross-port and cross-scheme redirects