PYSEC-2026-1078 AutoGPT is Vulnerable to RCE via Disabled Block Execution

Summary AutoGPT Platform's block execution endpoints both main web API and external API allow executing blocks by UUID without checking the disabled flag. Any authenticated user can execute the disabled BlockInstallationBlock, which writes arbitrary Python code to the server filesystem and execut...

PYSEC-2026-2052 Weblate wlc has insecure API key configuration

Impact Historically, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be used against different server. Patches https://github.com/WeblateOrg/wlc/pull/1098 Workarounds Remove unscoped...

PYSEC-2026-2051 Weblate command-line client susceptible to SSL verification skip

Impact The SSL verification would be skipped for some crafted URLs. Patches https://github.com/WeblateOrg/wlc/pull/1097 Workarounds Avoid using untrusted wlc configurations, as that might cause insecure connections. References This issue was reported to us by wh1zee via HackerOne...

PYSEC-2026-1097 AIOHTTP vulnerable to brute-force leak of internal static file path components

Summary Path normalization for static files prevents path traversal, but opens up the ability for an attacker to ascertain the existence of absolute path components. Impact If an application uses web.static not recommended for production deployments, it may be possible for an attacker to ascertai...

PYSEC-2026-1596 HTTP/HTTPS Traffic Interception Bypass in mad-proxy

A vulnerability in mad-proxy versions = 0.3 allows attackers to bypass HTTP/HTTPS traffic interception rules, potentially exposing sensitive traffic...

PYSEC-2026-1726 Open WebUI vulnerable to Server-Side Request Forgery (SSRF) via Arbitrary URL Processing in /api/v1/retrieval/process/web

Summary A Server-Side Request Forgery SSRF vulnerability in Open WebUI allows any authenticated user to force the server to make HTTP requests to arbitrary URLs. This can be exploited to access cloud metadata endpoints AWS/GCP/Azure, scan internal networks, access internal services behind...

PYSEC-2026-1192 arcade-mcp-server Has Default Hardcoded Worker Secret That Allows Full Unauthorized Access to All HTTP MCP Worker Endpoints

Summary The arcade-mcp HTTP server uses a hardcoded default worker secret "dev" that is never validated or overridden during normal server startup. As a result, any unauthenticated attacker who knows this default key can forge valid JWTs and fully bypass the FastAPI authentication layer. This...

PYSEC-2026-1617 Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default

Description The Model Context Protocol MCP Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using FastMCP with streamable HTTP or SSE transport, and has not configured...

PYSEC-2026-1234 Calibre-Web Has a Stored Cross-Site Scripting (XSS) Vulnerability via the 'username' Field During User Creation

A Stored Cross-Site Scripting XSS vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user creation. The payload is stored unsanitized and later executed when the /ajax/listusers endpoint is accessed...

PYSEC-2026-1490 OpenStack Keystone allows /v3/ec2tokens or /v3/s3tokens request with valid AWS Signature to provide Keystone authorization.

OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization...

PYSEC-2026-1203 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Summary Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes. During verification, Authlib decodes and parses the full input before it is rejected, driving...

PYSEC-2026-1816 pyLoad CNL and captcha handlers allow Code Injection via unsanitized parameters

Summary pyLoad web interface contained insufficient input validation in both the Captcha script endpoint and the Click'N'Load CNL Blueprint. This flaw allowed untrusted user input to be processed unsafely, which could be exploited by an attacker to inject arbitrary content into the web UI or...

PYSEC-2026-1573 LLaMA Factory's Chat API Contains Critical SSRF and LFI Vulnerabilities

Summary A Server-Side Request Forgery SSRF vulnerability in the chat API allows any authenticated user to force the server to make arbitrary HTTP requests to internal and external networks. This can lead to the exposure of sensitive internal services, reconnaissance of the internal network, or...

PYSEC-2026-1378 Flask App Builder has an Authentication Bypass vulnerability when using non AUTH_DB methods

Impact When Flask-AppBuilder is configured to use OAuth, LDAP, or other non-database authentication methods, the password reset endpoint remains registered and accessible, despite not being displayed in the user interface. This allows an enabled user to reset their password and be able to create...

PYSEC-2026-1330 ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header

Summary On the ESP-IDF platform, ESPHome's webserver authentication check can pass incorrectly when the client-supplied base64-encoded Authorization value is empty or is a substring of the correct value e.g., correct username with partial password. This allows access to webserver functionality...

PYSEC-2026-1717 OMERO.web displays unecessary user information when requesting password reset

Background If an error occurred when resetting a user's password using the Forgot Password option in OMERO.web, the error message displayed on the Web page can disclose information about the user. Impact OMERO.web before 5.29.1 Patches User should upgrade to 5.29.2 or higher Workarounds Disable t...

PYSEC-2026-1821 PyLoad vulnerable to SQL Injection via API /json/add_package in add_links parameter

Summary The parameter addlinks in the API /json/addpackage is vulnerable to SQL Injection. SQL injection vulnerabilities can lead to sensitive data leakage. Details - Affected file：https://github.com/pyload/pyload/blob/develop/src/pyload/core/database/filedatabase.pyL271 - Affected code: python...

PYSEC-2026-1682 MS SWIFT WEB-UI RCE Vulnerability

I. Detailed Description: This includes scenarios, screenshots, vulnerability reproduction methods. For account-related vulnerabilities, please provide test accounts. If the reproduction process is complex, you may record a video, upload it to Taopan, and attach the link. 1. Install ms-swift pip...

PYSEC-2026-1235 Calibre Web and Autocaliweb have OS Command Injection vulnerability

Improper Neutralization of Special Elements used in an OS Command 'OS Command Injection' vulnerability in Calibre Web, Autocaliweb allows Blind OS Command Injection. This issue affects Calibre Web: 0.6.24 Nicolette; Autocaliweb: from 0.7.0 before 0.7.1...

PYSEC-2026-1228 Calibre Web and Autocaliweb have a ReDoS vulnerability

ReDoS in stripwhitespaces function in cps/stringhelper.py in Calibre Web and Autocaliweb allows unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login. This issue affects Calibre Web: 0.6.24...