PYSEC-2026-1578 lmdeploy vulnerable to Arbitrary Code Execution via Insecure Deserialization in torch.load()

Summary An insecure deserialization vulnerability exists in lmdeploy where torch.load is called without the weightsonly=True parameter when loading model checkpoint files. This allows an attacker to execute arbitrary code on the victim's machine when they load a malicious .bin or .pt model file...

PYSEC-2026-1761 Insecure Deserialization (pickle) in pdfminer.six CMap Loader — Local Privesc

🚀 Overview This report demonstrates a real-world privilege escalation vulnerability in pdfminer.six due to unsafe usage of Python's pickle module for CMap file loading. It shows how a low-privileged user can gain root access or escalate to any service account by exploiting insecure deserializatio...

PYSEC-2026-1762 Arbitrary Code Execution in pdfminer.six via Crafted PDF Input

Summary pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The CMapDB.loaddata function in pdfminer.six uses pickle.loads to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in th...

PYSEC-2026-2018 vLLM deserialization vulnerability leading to DoS and potential RCE

Summary A memory corruption vulnerability that leading to a crash denial-of-service and potentially remote code execution RCE exists in vLLM versions 0.10.2 and later, in the Completions API endpoint. When processing user-supplied prompt embeddings, the endpoint loads serialized tensors using...

PYSEC-2026-1399 Fugue is Vulnerable to Remote Code Execution by Pickle Deserialization via FlaskRPCServer

Summary The Fugue framework implements an RPC server system for distributed computing operations. In the core functionality of the RPC server implementation, I found that the decode function in fugue/rpc/flask.py directly uses cloudpickle.loads to deserialize data without any sanitization. This...

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-2026-1288 DataChain Vulnerable to Deserialization of Untrusted Data from Environment Variables

The DataChain library reads serialized objects from environment variables such as DATACHAINMETASTORE and DATACHAINWAREHOUSE in the loader.py module. An attacker with the ability to set these environment variables can trigger code execution when the application loads...

PYSEC-2026-1633 ml-logger deserialization vulnerability

A vulnerability was determined in geyang ml-logger 0.10.36 and prior. Affected is the function loghandler of the file mllogger/server.py of the component Ping Handler. This manipulation of the argument data causes deserialization. It is possible to initiate the attack remotely. The exploit has be...

PYSEC-2026-1919 SGLang Remote Code Execution Vulnerability via Unsafe Deserialization in update_weights_from_tensor

A security flaw has been discovered in lmsys sglang 0.4.6. Affected by this vulnerability is the function main of the file /updateweightsfromtensor. The manipulation of the argument serializednamedtensors results in deserialization. The attack can be launched remotely. The exploit has been releas...

PYSEC-2026-2014 vLLM has remote code execution vulnerability in the tool call parser for Qwen3-Coder

Summary An unsafe deserialization vulnerability allows any authenticated user to execute arbitrary code on the server if they are able to get the model to pass the code as an argument to a tool call. Details vLLM's Qwen3 Coder tool parser contains a code execution path that uses Python's eval...

PYSEC-2026-1683 MS SWIFT Remote Code Execution via unsafe PyYAML deserialization

Description A Remote Code Execution RCE vulnerability exists in the modelscope/ms-swift project due to unsafe use of yaml.load in combination with vulnerable versions of the PyYAML library ≤ 5.3.1. The issue resides in the tests/run.py script, where a user-supplied YAML configuration file is...

PYSEC-2026-1505 HumanSignal label-studio-ml-backend Deserialization of Untrusted Data vulnerability

A vulnerability has been found in HumanSignal label-studio-ml-backend up to 9fb7f4aa186612806af2becfb621f6ed8d9fdbaf and classified as problematic. Affected by this vulnerability is the function load of the file label-studio-ml-backend/labelstudioml/examples/yolo/utils/neuralnets.py of the...

PYSEC-2026-1464 FunAudioLLM InspireMusic deserialization vulnerability

A vulnerability was found in FunAudioLLM InspireMusic up to bf32364bcb0d136497ca69f9db622e9216b029dd. It has been classified as critical. Affected is the function loadstatedict of the file inspiremusic/cli/model.py of the component Pickle Data Handler. The manipulation leads to deserialization. A...

PYSEC-2026-2017 Remote Code Execution Vulnerability in vLLM Multi-Node Cluster Configuration

Affected Environments Note that this issue only affects the V0 engine, which has been off by default since v0.8.0. Further, the issue only applies to a deployment using tensor parallelism across multiple hosts, which we do not expect to be a common deployment pattern. Since V0 is has been off by...

PYSEC-2026-1574 LLaMA-Factory Allows Arbitrary Code Execution via Unsafe Deserialization in Ilamafy_baichuan2.py

Description A critical vulnerability exists in the llamafybaichuan2.py script of the LLaMA-Factory project. The script performs insecure deserialization using torch.load on user-supplied .bin files from an input directory. An attacker can exploit this behavior by crafting a malicious .bin file th...

PYSEC-2026-1577 LMDeploy Improper Input Validation Vulnerability

A vulnerability was found in InternLM LMDeploy up to 0.7.1. It has been classified as critical. Affected is the function loadweightckpt of the file lmdeploy/lmdeploy/vl/model/utils.py of the component PT File Handler. The manipulation leads to deserialization. Attacking locally is a requirement...

CVE-2026-14535

A flaw was found in the fickling library, versions up to and including 0.1.11. A logic error in the security analysis passes allows an attacker to bypass intended safety checks during pickle deserialization. This vulnerability enables the invocation of arbitrary standard library modules, leading ...

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...

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-2026-1514 LangChain pickle deserialization of untrusted data

A vulnerability in the FAISS.deserializefrombytes function of langchain-ai/langchain allows for pickle deserialization of untrusted data. This can lead to the execution of arbitrary commands via the os.system function. The issue affects versions prior to 0.2.4...