CVE-2026-46415

The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used r.RemoteAddr when evaluating whether a request should be blocked. RemoteAddr is the address of the immediate peer...

CVE-2026-46415 Caddy Defender trusted proxy client IP bypass

The Caddy Defender plugin is a middleware for Caddy that allows users to block or manipulate requests based on the client's IP address. Prior to version 0.10.1, Caddy Defender used r.RemoteAddr when evaluating whether a request should be blocked. RemoteAddr is the address of the immediate peer...

EUVD-2026-43636

Eclipse Kura versions prior to 5.6.2 trust the client-supplied X-Forwarded-For HTTP header as the authoritative source of the client IP address in audit log entries. The org.eclipse.kura.web2 Web Console and org.eclipse.kura.rest.provider REST API components use this header as the primary IP sour...

CVE-2026-9561

Eclipse Kura versions prior to 5.6.2 trust the client-supplied X-Forwarded-For HTTP header as the authoritative source of the client IP address in audit log entries. The org.eclipse.kura.web2 Web Console and org.eclipse.kura.rest.provider REST API components use this header as the primary IP sour...

Langflow vulnerable to injection

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...

CVE-2026-54003 Kirby: External Initialization of the Panel on reverse proxy setups with the `Forwarded` header

Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites with no configured user accounts that run on publicly accessible servers behind a reverse proxy setting the Forwarded, X-Client-IP, or X-Real-IP request header could allow remote attackers to install the...

CVE-2026-54003: External Initialization of Trusted Variables or Data Stores

Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites with no configured user accounts that run on publicly accessible servers behind a reverse proxy setting the Forwarded, X-Client-IP, or X-Real-IP request header could allow remote attackers to install the...

phpSysInfo CVE-2026-55584 - PSI_ALLOWED IP allowlist bypass (info disclosure)

CVE-2026-55584: phpSysInfo = 3.4.5 resolves the client IP from attacker-controlled X-Forwarded-For or Client-IP before REMOTEADDR when enforcing PSIALLOWED. Spoofing an allowlisted address bypasses the restriction and exposes full system information via xml.php. !/usr/bin/env python3 -- coding:...

phpSysInfo CVE-2026-55584 detection

Fingerprints phpSysInfo and flags versions = 3.4.5 affected by CVE-2026-55584 PSIALLOWED IP allowlist bypass via X-Forwarded-For / Client-IP. !/usr/bin/env python3 -- coding: utf-8 -- from kittysploit import from lib.protocols.http.httpclient import Httpclient from lib.protocols.http.phpsysinfo...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via unvalidated parsing of the Forwarded and X-Forwarded-For headers. An attacker can inject arbitrary or malformed values into Request.ClientIPAddresses by supplying crafted forwarding headers. This can lead to...

PT-2026-53121

Summary When the trusted proxies option is configured, heimdall extracts client IP addresses from the Forwarded for= parameter and X-Forwarded-For headers and exposes them as Request.ClientIPAddresses to the rule pipeline. However, extracted values are not validated to be syntactically valid IP...

CVE-2026-6599

A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function getclientip/installmcpconfig of the file src/backend/base/langflow/api/v1/mcpprojects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference in the getclientip process when the server is configured with trusted proxies and receives a specially crafted X-Forwarded-For header that parses to no valid IP segments. An attacker can cause abnormal process...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

CVE-2026-46356

Fleet is open source device management software. Prior to version 4.80.1, a vulnerability in Fleet's IP extraction logic allows unauthenticated attackers to bypass API rate limiting by spoofing client IP headers. This may allow brute-force login attempts or other abuse against Fleet instances...

CVE-2026-24000

Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limitin...

WS-2017-0274

Affected versions on the Rack package 1.4.0 before 1.6.0, are vulnerable to IP spoofing via X-Forwarded-For and Client-IP headers...

CVE-2026-24000: Authentication Bypass by Spoofing

Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limitin...

Cleanuparr security vulnerability

Cleanuparr is an automated tool developed by Cleanuparr OpenSource, designed to clean up invalid files in the download queue. Versions of Cleanuparr prior to 2.9.10 contained security vulnerabilities. These vulnerabilities stemmed from the TrustedNetworkAuthenticationHandler.ResolveClientIp...

GHSA-289F-FQ7W-6Q2W phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha

Summary BuiltinCaptcha::garbageCollector and BuiltinCaptcha::saveCaptcha at phpmyfaq/src/phpMyFAQ/Captcha/BuiltinCaptcha.php:298 and :330 interpolate the User-Agent header and client IP address into DELETE and INSERT queries with sprintf and no escaping. Both methods run on every hit to the publi...