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Published vulnerabilities with severity, known exploitation and official sources.
CVE-2026-54665
Medium · 5.3
CWE-346 Jun 22, 2026
Apache NiFi: Missing Validation for Proxy Host Headers
Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that provide an alternative to the standard Host header without validating the values provided. Apache NiFi 1.6.0 introduced a configurable application property to restrict values provided in the HTTP Host header, but did not apply the validation to alternative Proxy and Forwarded headers. The absence of proxy host header validation allowed a client to instruct Apache NiFi web services to construct invalid qualified URLs for redirection or data references. Upgrading to Apache NiFi 2.10.0 is the recommended mitigation, which implements validation for the X-ProxyHost and X-Forwarded-Host HTTP request headers based on the nifi.web.proxy.host property. Enabling header validation requires configuring the application with HTTPS. Reverse proxy servers in front of Apache NiFi are responsible for filtering input request headers and providing allowed values to the application.
CVE-2026-6734
High · 8.8
CWE-346 Jun 17, 2026
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
Impact:
When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless of the intended destination.
This causes cross-origin request routing: credentials and request data intended for origin B are sent to origin A, responses from the wrong origin are trusted, and HTTPS requests may be silently downgraded to HTTP.
Impacted users are applications that use Socks5ProxyAgent (directly or via setGlobalDispatcher) and make requests to more than one origin.
This was introduced in undici 7.23.0 via PR #4385 and affects all versions through 8.1.0.
Patches:
Upgrade to undici v7.26.0 or v8.2.0.
Workarounds:
Use a separate Socks5ProxyAgent instance per origin, or avoid using Socks5ProxyAgent with multiple origins.
CVE-2026-12304
Critical · 9.1
CWE-346 Jun 16, 2026
Same-origin policy bypass in the Networking: Cookies component
Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-47825
High · 8.6
CWE-346 Jun 15, 2026
Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations
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 3.1.x (fix 3.1.13).
Spring Cloud Gateway 4.1.x (fix 4.1.13).
Spring Cloud Gateway 4.2.x (fix 4.2.9).
Spring Cloud Gateway 4.3.x (fix 4.3.5).
Spring Cloud Gateway 5.0.x (fix 5.0.2).
CVE-2026-9595
Medium · 4.3
CWE-346 Jun 15, 2026
webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies
Impact: When a user-configured proxy on webpack-dev-server has a broad context (e.g. /) and ws: true, it also intercepts the dev server's own HMR WebSocket and forwards it to the proxy target. This leaks the browser's cookies and Origin header to the backend, bypasses the dev server's Host/Origin validation, and corrupts the HMR socket (both HMR and the proxy end up writing to the same socket).
Patches: Fixed in webpack-dev-server@5.2.5.
Workarounds: Scope user-defined proxy context to specific paths instead of /, or omit ws: true from the proxy entry when WebSocket forwarding is not required.
CVE-2026-11624
Critical · 9.4
CWE-346 Jun 13, 2026
The Model Context Protocol has a security warning advising servers to validate the…
The Model Context Protocol has a security warning advising servers to validate the "Origin" header on all incoming connections to prevent DNS rebinding attacks. Prior to the v0.25.0 release, users had no way to validate the origin's host. In v0.25.0, a new "--allowed-hosts" flag was introduced alongside the existing "--allowed-origins" flag, enabling users to specify permitted hosts at server startup. Both flags default to "*", allowing users to implement strict access controls as needed without breaking existing setups. If either flag is set to "*", the server will output a startup warning about potential vulnerabilities. Documentation has also been updated to highlight these security considerations.
CVE-2026-45173
Medium · 6.5
CWE-346 Jun 11, 2026
Idira Identity Browser Extension: Unauthorized Application Interaction via Origin Validation Failure
Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin validation flaw within its internal web-page verification routines. If an authenticated user navigates to a specially crafted webpage, this interaction could potentially allow a remote attacker to trigger unauthorized application interaction or execution parameters within the context of that authenticated browser session. CyberArk Security Bulletin: CA26-21
CVE-2026-12032
Low · 3.1
CWE-346 Jun 11, 2026
Inappropriate implementation in Passwords in Google Chrome on Android prior to…
Inappropriate implementation in Passwords in Google Chrome on Android prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
CVE-2026-12024
Medium · 6.5
CWE-346 Jun 11, 2026
Insufficient policy enforcement in DevTools in Google Chrome prior to 149.0.7827.115…
Insufficient policy enforcement in DevTools in Google Chrome prior to 149.0.7827.115 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
CVE-2026-41700
High · 8.1
CWE-346 Jun 11, 2026
Cross-Site WebSocket Hijacking in Spring for GraphQL
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 arbitrary GraphQL operations with the victim's credentials.
Affected versions:
Spring for GraphQL 2.0.0 through 2.0.3; 1.4.0 through 1.4.5; 1.3.0 through 1.3.8; 1.0.0 through 1.0.6.
CVE-2026-10846
High · 7.5
CWE-346 Jun 10, 2026
Insufficient verification that responses belong to a query
NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.
CVE-2026-44755
Medium · 4.3
CWE-346 Jun 8, 2026
Email Spoofing vulnerability in SAP Business Objects Business Intelligence Platform
SAP Business Objects Business Intelligence Platform does not sufficiently validate email sending parameters supplied by authenticated users, resulting in an email spoofing vulnerability.This vulnerability has a low impact on integrity and does not affect the confidentiality and availability of the application.
CVE-2026-11693
High · 8.1
CWE-346 Jun 8, 2026
Inappropriate implementation in Plugins in Google Chrome prior to 149.0.7827.103 allowed…
Inappropriate implementation in Plugins in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
CVE-2026-43972
High · 7.2
CWE-346 Jun 8, 2026
gun HTTP/2 PUSH_PROMISE authority not validated against connection origin allows cross-origin cookie injection
Origin Validation Error vulnerability in ninenines gun (gun_http2 module) allows cross-origin cookie injection via unvalidated HTTP/2 PUSH_PROMISE authority.
In gun_http2:push_promise_frame/7, the :authority pseudo-header from an incoming PUSH_PROMISE frame is stored verbatim into the promised stream record without checking that it matches the connection's origin. When gun_http2:headers_frame/9 later processes the response headers for the promised stream, it calls gun_cookies:set_cookie_header/7 with the unvalidated server-supplied authority before any status branching and before user code can act. This violates RFC 7540 §10.6 / RFC 9113 §8.4, which require receivers to treat as a protocol error any push for a resource the server is not authoritative for.
A malicious or compromised HTTP/2 server can plant cookies scoped to arbitrary third-party domains into the client's shared cookie store. This enables session fixation attacks against those domains and, if the planted cookie overrides a legitimate session token, may result in account takeover. No user interaction beyond making a normal HTTP/2 request to the attacker-controlled server is required.
This issue affects gun: from 2.0.0 before 2.4.0.
CVE-2026-37737
Medium · 6.5
CWE-346 Jun 5, 2026
sanic-cors version 2.2.0 and prior contains an improper regular expression in the…
sanic-cors version 2.2.0 and prior contains an improper regular expression in the try_match() function in sanic_cors/core.py that uses re.match without end-anchoring. This allows an attacker to bypass CORS origin allowlists by registering a domain that begins with a trusted origin string, to gain unauthorized access to cross-origin requests for authenticated resources.
CVE-2026-11309
Medium · 4.3
CWE-346 Jun 4, 2026
Insufficient policy enforcement in History in Google Chrome prior to 149.0.7827.53…
Insufficient policy enforcement in History in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11298
Medium · 4.3
CWE-346 Jun 4, 2026
Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to…
Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11291
Medium · 4.3
CWE-346 Jun 4, 2026
Inappropriate implementation in Android Autofill in Google Chrome on Android prior to…
Inappropriate implementation in Android Autofill in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11278
Medium · 6.5
CWE-346 Jun 4, 2026
Inappropriate implementation in CustomTabs in Google Chrome on Android prior to…
Inappropriate implementation in CustomTabs in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11243
Medium · 5.4
CWE-346 Jun 4, 2026
Inappropriate implementation in Downloads in Google Chrome prior to 149.0.7827.53…
Inappropriate implementation in Downloads in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11226
Medium · 6.5
CWE-346 Jun 4, 2026
Insufficient policy enforcement in PreviewTab in Google Chrome on Android prior to…
Insufficient policy enforcement in PreviewTab in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11217
Medium · 6.5
CWE-346 Jun 4, 2026
Inappropriate implementation in Fenced Frames in Google Chrome prior to 149.0.7827.53…
Inappropriate implementation in Fenced Frames in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-11214
Medium · 6.5
CWE-346 Jun 4, 2026
Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to…
Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
CVE-2026-11200
Medium · 6.5
CWE-346 Jun 4, 2026
Inappropriate implementation in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a…
Inappropriate implementation in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
CVE-2026-11195
Medium · 6.5
CWE-346 Jun 4, 2026
Inappropriate implementation in MHTML in Google Chrome prior to 149.0.7827.53 allowed a…
Inappropriate implementation in MHTML in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)