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-2026-1284 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...

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-2026-1866 Amazon Redshift Python Connector vulnerable to SQL Injection

Summary A SQL injection in the Amazon Redshift Python Connector in version 2.1.4 allows a user to gain escalated privileges via schema injection in the getschemas, gettables, or getcolumns Metadata APIs. Users should upgrade to the driver version 2.1.5 or revert to driver version 2.1.3. Impact A...

PYSEC-2026-1855 python-sql SQL injection vulnerability

A vulnerability was found in python-sql where unary operators do not escape non-Expression like And and Or which makes any system exposing those vulnerable to an SQL injection attack...

PYSEC-2026-1923 sigstore has insufficient validation of integration timestamp during verification

Summary Versions of sigstore-python newer than 2.0.0 but prior to 3.6.0 perform insufficient validation of the "integration time" present in "v2" and "v3" bundles during the verification flow: the "integration time" is verified if a source of signed time such as an inclusion promise is present, b...

PYSEC-2026-1472 Jinja has a sandbox breakout through malicious filenames

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether...

PYSEC-2026-1848 python-libarchive directory traversal

python-libarchive through 4.2.1 allows directory traversal to create files in extract in zip.py for ZipFile.extractall and ZipFile.extract...

PYSEC-2026-1851 Denial of service (DoS) via deformation `multipart/form-data` boundary

Summary When parsing form data, python-multipart skips line breaks CR \r or LF \n in front of the first boundary and any tailing bytes after the last boundary. This happens one byte at a time and emits a log event each time, which may cause excessive logging for certain inputs. An attacker could...