PYSEC-2026-1854 python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments

Summary A remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use...

PYSEC-2026-1795 pip's fallback tar extraction doesn't check symbolic links point to extraction directory

When extracting a tar archive pip may not check symbolic links point into the extraction directory if the tarfile module doesn't implement PEP 706. Note that upgrading pip to a "fixed" version for this vulnerability doesn't fix all known vulnerabilities that are remediated by using a Python versi...

PYSEC-2026-1784 Picklescan has a missing detection when calling built-in python idlelib.autocomplete.AutoComplete.get_entity

Summary Using idlelib.autocomplete.AutoComplete.getentity, which is a built-in python library function to execute remote pickle file. Details The attack payload executes in the following steps: First, the attacker craft the payload by calling to idlelib.autocomplete.AutoComplete.getentity functio...

PYSEC-2026-1792 Picklescan is missing detection when calling built-in python ensurepip._run_pip

Summary Using ensurepip.runpip function, which is a built-in python library function to execute remote pickle file. Details The attack payload executes in the following steps: First, the attacker craft the payload by calling to ensurepip.runpip function in reduce method Then when the victim after...

PYSEC-2026-1087 Aim vulnerable to Cross-site Scripting

Cross-site Scripting XSS in aimhubio Aim 3.28.0 allows remote attackers to execute arbitrary JavaScript in victims browsers via malicious Python code submitted to the /api/reports endpoint, which is interpreted and executed by Pyodide when the report is viewed. No sanitisation or sandbox...

PYSEC-2026-1104 AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections

Summary The Python parser is vulnerable to a request smuggling vulnerability due to not parsing trailer sections of an HTTP request. Impact If a pure Python version of aiohttp is installed i.e. without the usual C extensions or AIOHTTPNOEXTENSIONS is enabled, then an attacker may be able to execu...

PYSEC-2026-1590 Lord of Large Language Models vulnerable to Observable Discrepancy attack via authenticate_user function

The parisneo/lollms repository is affected by a timing attack vulnerability in the authenticateuser function within the lollmsauthentication.py file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The...

PYSEC-2026-1618 MCP Python SDK has Unhandled Exception in Streamable HTTP Transport, Leading to Denial of Service

If a client deliberately triggers an exception after establishing a streamable HTTP session, this can lead to an uncaught ClosedResourceError on the server side, causing the server to crash and requiring a restart to restore service. Impact may vary depending on the deployment conditions, and...

PYSEC-2026-1616 MCP Python SDK vulnerability in the FastMCP Server causes validation error, leading to DoS

A validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability 500 errors until manually restarted. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Thank y...

PYSEC-2026-1806 protobuf-python has a potential Denial of Service issue

Summary Any project that uses Protobuf pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. Reporter: Alexis Challande, Trail of Bits...

PYSEC-2026-1088 Aim Vulnerable to Sandbox Escape Leading to Remote Code Execution

A vulnerability classified as critical was found in aimhubio aim up to 3.29.1. This vulnerability affects the function RestrictedPythonQuery of the file /aim/storage/query.py of the component runview Object Handler. The manipulation of the argument Query leads to sandbox issue. The attack can be...

MAL-2026-6945 Malicious code in jsonschemavalidation (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector eae82aa94c358f1f00f8a12e8b583cee82efdcf09d2f80263e6851ac0fec98f3 The PyPI project jsonschemavalidation builds a wheel whose installed top-level package is literally jsonschema tool.hatch.build.targets.wheel package...

Malicious code in jsonschemavalidation (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector eae82aa94c358f1f00f8a12e8b583cee82efdcf09d2f80263e6851ac0fec98f3 The PyPI project jsonschemavalidation builds a wheel whose installed top-level package is literally jsonschema tool.hatch.build.targets.wheel package...

Malicious code in paysafe-api (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 9d9cc9039ffa3e8cadc8a24b0ccd83bcc8eca2fe88e25f35b2022cc1957220fb paysafe-api impersonates the Paysafe payments provider package name, description, author 'Paysafe Developer Team', and use of api.paysafe.com /...

CVE-2026-14534

A flaw was found in the fickling library, which is designed to safely handle Python pickle data. The library's security checks in versions up to and including 0.1.10 fail to properly identify and block certain dangerous Python standard library modules during deserialization. This oversight allows...

SUSE CVE-2026-54059

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py loadbitmaps read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes without calling Image.decompressionbombcheck, allowing crafted PCF font data to cause excessive memory allocation. Thi...

PYSEC-2026-1485 Kedro allows Remote Code Execution by Pulling Micro Packages

In kedro-org/kedro version 0.19.8, the pullpackage API function allows users to download and extract micro packages from the Internet. However, the function projectwheelmetadata within the code path can execute the setup.py file inside the tar file, leading to remote code execution RCE by running...

Malciously crafted QPY files can allows Remote Attackers to Cause Denial of Service in Qiskit

ImpactA maliciously crafted QPY file containing a malformed symengine serialization stream as part of the larger QPY serialization of a ParameterExpression object can cause a segfault within the symengine library, allowing an attacker to terminate the hosting process deserializing the QPY payload...

PYSEC-2026-1874 try/except* clauses could allow bypass RestrictedPython via type confusion bug in the CPython interpreter

Impact Via a type confusion bug in the CPython interpreter when using try/except RestrictedPython could be bypassed. We believe this should be fixed upstream in Python itself until that we remove support for try/except from RestrictedPython. It has been fixed for some Python versions. Patches...

PYSEC-2026-1284 Vulnerable OpenSSL included in cryptography wheels

pyca/cryptography's wheels include a statically linked copy of OpenSSL. The versions of OpenSSL included in cryptography 42.0.0-44.0.0 are vulnerable to a security issue. More details about the vulnerability itself can be found in https://openssl-library.org/news/secadv/20250211.txt. If you are...