CVE-2026-40594 pyLoad: Session Cookie Security Downgrade via Untrusted X-Forwarded-Proto Header Spoofing (Global State Race Condition)

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev98, the setsessioncookiesecure beforerequest handler in src/pyload/webui/app/init.py reads the X-Forwarded-Proto header from any HTTP request without validating that the request originates from a trusted prox...

CVE-2026-40594

CVE-2026-40594 affects pyLoad: the set_session_cookie_secure before_request in pyload/webui/app/init .py reads X-Forwarded-Proto without origin validation and mutates the global Flask SESSION_COOKIE_SECURE on every request. With Cheroot’s multi-threaded server (request_queue_size=512), this creat...

PT-2026-34172

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, a password reset poisoning vulnerability was identified in the application due to improper trust of user-controlled HTTP headers. The application uses the X-Forwarded-Host header when generating password reset URLs. By...

pyLoad 安全漏洞

pyLoad is an open-source download manager written in Python. Versions of pyLoad prior to 0.5.0b3.dev98 contained security vulnerabilities. These vulnerabilities stemmed from the lack of verification of the X-Forwarded-Proto header’s source, leading to race conditions in a multi-threaded...

LinkAce 输入验证错误漏洞

LinkAce is a self-hosted repository developed by Kevin Woblick, designed to collect links to your favorite websites. Versions of LinkAce prior to 2.5.4 contained a vulnerability related to input validation errors. This vulnerability stemmed from the improper trust given to the X-Forwarded-Host...

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...

GHSA-V66P-F7X3-4794 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...

EUVD-2026-23762

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...

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Overview Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component 'Injection' via the installmcpconfig function in the Model Context Protocol Configuration API when processing the X-Forwarded-For argument. An...

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...

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...

CVE-2026-6599

The CVE-2026-6599 entry concerns langflow-ai langflow (up to v1.8.3) with a flaw in the Model Context Protocol Configuration API. The affected element is the file src/backend/base/langflow/api/v1/mcp_projects.py, specifically the install_mcp_config function (and mention of get_client_ip). Manipul...

CVE-2026-6599 langflow-ai langflow Model Context Protocol Configuration API mcp_projects.py install_mcp_config 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-2026-6599 langflow-ai langflow Model Context Protocol Configuration API mcp_projects.py install_mcp_config 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...

PT-2026-33705

Name of the Vulnerable Software and Affected Versions langflow-ai langflow versions prior to 1.8.4 Description An issue exists in the Model Context Protocol Configuration API within the get client ip/install mcp config functions of the file src/backend/base/langflow/api/v1/mcp projects.py. A remo...

Rate-limit bypass on POST /api/v1/login via X-Forwarded-For rotation

What's wrong The rate limiter on the login endpoint keys each request by request.client.host. Uvicorn is launched with --proxy-headers --forwarded-allow-ips in docker/base.Dockerfile, so request.client.host is whatever the client puts in the X-Forwarded-For header. An attacker just rotates that...

USN-8182-1: Rack vulnerabilities

Andrew Lacambra discovered that Rack did not properly parse certain regular expressions. An attacker could possibly use this issue to bypass network security filters. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. CVE-2026-26961 William T. Nelson...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : Rack vulnerabilities (USN-8182-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8182-1 advisory. Andrew Lacambra discovered that Rack did not properly parse certain regular...

BIT-AUTHENTIK-2024-47070 authentik vulnerable to password authentication bypass via X-Forwarded-For HTTP header

authentik is an open-source identity provider. A vulnerability that exists in versions prior to 2024.8.3 and 2024.6.5 allows bypassing password login by adding X-Forwarded-For header with an unparsable IP address, e.g. a. This results in a possibility of logging into any account with a known logi...

BIT-AUTHENTIK-2023-36456 Authentik lacks Proxy IP headers validation

authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without a reverse proxy a...