CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

CVE-2026-33805

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

CVE-2026-33805

CVE-2026-33805 affects @fastify/reply-from <= v12.6.1 and @fastify/http-proxy

@agentspec/claude-plugin (>=0.1.0, <=0.2.0), @agentspec/sidecar (0.1.0) +101 more potentially affected by CVE-2026-33805 via @fastify/http-proxy (>=7.1.0, <=11.4.3)

@fastify/http-proxy NPM version =7.1.0, =0.1.0, =0.0.2, =1.0.19, =2.1.22, =0.1.1, =0.1.0, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =0.0.4, =1.0.0, =3.0.0-alpha-1, =3.0.0-alpha-6 and more Source cves: CVE-2026-33805 Source advisory: MEND:CVE-2026-33805...

CVE-2026-33805

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

CVE-2026-33805 @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them i...

HTTP client proxy tunnel headers not validated for CR/LF

...

MAL-2026-2674 Malicious code in chief-proxy-out (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 9b408fee03920bbac11e3f3e2a31fa1948a9d1b99041e54c1e10ba0f5e8cf949 The package chief-proxy-out was found to contain malicious code. Source: ghsa-malware cc92974c8b9f8dc914e29b747314307d52026764bd99c484f10fad298df29f6...

Malicious Package

Overview chief-proxy-out is a malicious package. This package contains malicious code, and its content was removed from the official package manager. While this package might be attempting to impersonate a valid organization, there is no connection between that organization and this package...

Malicious code in chief-proxy-out (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 9b408fee03920bbac11e3f3e2a31fa1948a9d1b99041e54c1e10ba0f5e8cf949 The package chief-proxy-out was found to contain malicious code. Source: ghsa-malware cc92974c8b9f8dc914e29b747314307d52026764bd99c484f10fad298df29f6...

Malware in chief-proxy-out

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outsid...

PT-2026-35186

Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: Use of skip auth routes or the legacy skip auth regex Use of patterns that can be widened by attacker-controlled suffixes, such as ^/foo/./bar$ causing...

Security vulnerabilities in fastify/reply-from and fastify/http-proxy

fastify/reply-from and fastify/http-proxy are both products from the Fastify open-source project. fastify/reply-from is a plugin designed to forward incoming HTTP requests to another server. fastify/http-proxy is a full-featured HTTP proxy plugin that supports proxying WebSocket connections and...

Upsonic security vulnerabilities

Upsonic is an open-source AI proxy framework developed by Upsonic. Version 0.71.6 of Upsonic contains a security vulnerability. This vulnerability stems from defects in the MCP server or the task creation functionality, which may lead to remote code execution...

Google Chrome security vulnerabilities

Google Chrome is a web browser developed by Google Inc. Versions of Google Chrome prior to 147.0.7727.101 contained a security vulnerability. This vulnerability stemmed from the Proxy component allowing for post-release reuse of objects, which could enable attackers from privileged network...

Stable Channel Update for Desktop

The Stable channel has been updated to 147.0.7727.101/102 for Windows/Mac and 147.0.7727.101 for Linux, which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log Security Fixes and Rewards Note: Access to bug details and links may be kept...

KLA90990 Multiple vulnerabilities in Google Chrome

Multiple vulnerabilities were found in Google Chrome. Malicious users can exploit these vulnerabilities to bypass security restrictions, cause denial of service, execute arbitrary code. Below is a complete list of vulnerabilities: 1. Denial of service vulnerability in ANGLE can be exploited...

PT-2026-33224

Name of the Vulnerable Software and Affected Versions OAuth2 Proxy versions prior to 7.15.2 Description A configuration-dependent authentication bypass occurs when OAuth2 Proxy is configured with --reverse-proxy and has at least one rule defined using --skip auth routes or --skip-auth-regex. In...

PT-2026-34215

Name of the Vulnerable Software and Affected Versions OAuth2 Proxy versions 7.5.0 through 7.15.1 Description A configuration-dependent authentication bypass exists when the software is deployed using skip auth routes or the legacy skip auth regex with patterns that can be widened by...