Authlib library contains a signature‑verification bypass vulnerability

Overview Authlib versions up to and including 1.7.2 contain a signature‑verification bypass in the JSON Web Signature JWS general JSON serialization handling. The JsonWebSignature.deserializejson function accepts a JWS object with an empty "signatures" array and treats the payload as successfully...

Important: python-tornado

Issue Overview: Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.8, Tornado parses application/x-www-form-urlencoded request bodies with urllib.parse.parseqs in tornado/escape.py without passing maxnumfields. RequestHandler.execute in tornado/web.py parses the...

pyasn1 Uncontrolled Resource Consumption DoS

The vulnerability of the pyasn1 library in the Python programming language is related to an uncontrolled resource consumption. Exploiting this vulnerability could allow a malicious actor to cause service failures...

pyasn1 Uncontrolled Resource Consumption DoS

The vulnerability of the pyasn1 library in the Python programming language is related to an uncontrolled resource consumption. Exploiting this vulnerability could allow a malicious actor to cause service failures...

shellshock-cve-lab

Shellshock CVE-2014-6271 ラボ このリポジトリには、CVE-2014-6271 用の小さな CGI ラボが含まれています。GNU bash 4.2 をコンパイルし、 Python の RFC-3875 スタイルのサーバーを通じて CGI スクリプトを提供し、リクエストヘッダーを CGI 環境変数にマッピングします。 Sentinel は、このシナリオを 2026-08-27 にゼロから構築したサンドボックスラボとして再現しました。 これは意図的に脆弱性を含むラボです。隔離されたローカル環境またはサンドボックス 環境でのみ実行してください。 実行 docker...

Exploit for CVE-2026-14281

CVE-2026-14281 Checker A lightweight, Windows-friendly Python...

CVE-2026-101060

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101058

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101057

utcp-mcp the MCP plugin of python-utcp through 1.1.2 connects to the HTTP and WebSocket MCP server URLs given in a call template's mcpServers configuration without the ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101060 python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101060 python-utcp before 1.1.4 SSRF via unvalidated HTTP redirects

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

EUVD-2026-87985

python-utcp versions before 1.1.4 contain a server-side request forgery vulnerability in HttpCommunicationProtocol.calltool that validates the initial tool URL but follows HTTP redirects without re-validating the target. Attackers controlling a tool endpoint can return a 302 redirect to internal...

CVE-2026-101060

Versions of python-utcp before 1.1.4 are vulnerable to a Server-Side Request Forgery (SSRF) in the HttpCommunicationProtocol.call_tool function. The root cause is that the application validates the initial tool URL but fails to re-validate the target during HTTP redirects . An attacker controllin...

CVE-2026-101058

The python-utcp (pip package utcp-http ) version before 1.1.12 is vulnerable to a Server-Side Request Forgery (SSRF) . The flaw exists because the software fails to verify if tool URLs declared in a hand-written UTCP manual point to the host's loopback interface (127.0.0.1) when the manual is fet...

EUVD-2026-87983

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101058 python-utcp before 1.1.12 SSRF via Remote HTTP Manual

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101058 python-utcp before 1.1.12 SSRF via Remote HTTP Manual

python-utcp pip package utcp-http before 1.1.12 does not verify whether tool URLs declared in a hand-written UTCP manual point at the agent's own loopback interface when that manual is discovered from a remote, non-loopback origin. Because ensuresecureurl intentionally permits loopback HTTP for...

CVE-2026-101057 utcp-mcp before 1.1.3 SSRF via unvalidated MCP server URL

utcp-mcp the MCP plugin of python-utcp through 1.1.2 connects to the HTTP and WebSocket MCP server URLs given in a call template's mcpServers configuration without the ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101057 utcp-mcp before 1.1.3 SSRF via unvalidated MCP server URL

utcp-mcp the MCP plugin of python-utcp through 1.1.2 connects to the HTTP and WebSocket MCP server URLs given in a call template's mcpServers configuration without the ensuresecureurl validation that the HTTP-family plugins apply, so the HTTPS/WSS-or-loopback rule is not enforced. A call template...

CVE-2026-101057

The utcp-mcp plugin (part of python-utcp ) versions through 1.1.2 is vulnerable to Server-Side Request Forgery (SSRF) . The root cause is a lack of ensure_secure_url validation when connecting to HTTP or WebSocket MCP server URLs provided in a call template's mcpServers configuration. This bypass...