PYSEC-2026-1371 Fickling Blocklist Bypass: cProfile.run()

Fickling's assessment cProfile was added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/dc8ae12966edee27a78fe05c5745171a2b138d43. Original report Description Summary Fickling versions up to and including 0.1.6 do not treat Python's cProfile module as unsafe. Because ...

PYSEC-2026-1759 Parsl Monitoring Visualization Vulnerable to SQL Injection

Affected Product: Parsl Python Parallel Scripting Library Component: parsl.monitoring.visualization Vulnerability Type: SQL Injection CWE-89 Severity: High CVSS Rating Recommended: 7.5 - 8.6 URL: https://github.com/Parsl/parsl/blob/master/parsl/monitoring/visualization/views.py Summary A SQL...

PYSEC-2026-1787 picklescan has Arbitrary file read using `io.FileIO`

Summary Unsafe pickle deserialization allows unauthenticated attackers to read arbitrary server files and perform SSRF. By chaining io.FileIO and urllib.request.urlopen, an attacker can bypass RCE-focused blocklists to exfiltrate sensitive data example: /etc/passwd to an external server. Details...

PYSEC-2026-1790 Picklescan Bypasses Unsafe Globals Check using pty.spawn

Summary The vulnerability allows malicious actors to bypass PickleScan's unsafe globals check, leading to potential arbitrary code execution. The issue stems from the absence of the pty library more specifically, of the pty.spawn function from PickleScan's list of unsafe globals. This vulnerabili...

PYSEC-2026-1368 Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list

Fickling Assessment Based on the test case provided in the original report below, this bypass was caused by marshal and types missing from the block list of unsafe module imports, Fickling started blocking both modules to address this issue. This was fixed in...

PYSEC-2026-1389 fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

Summary The fonttools varLib or python3 -m fontTools.varLib script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main code path of fontTools.varLib, used by the fonttools varLib CLI and...

PYSEC-2026-1520 LangChain Text Splitters is vulnerable to XML External Entity (XXE) attacks due to unsafe XSLT parsing

The HTMLSectionSplitter class in langchain-text-splitters is vulnerable to XML External Entity XXE attacks due to unsafe XSLT parsing. This vulnerability arises because the class allows the use of arbitrary XSLT stylesheets, which are parsed using lxml.etree.parse and lxml.etree.XSLT without any...

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-2026-1672 MobSF Path Traversal in GET /download/<filename> using absolute filenames

Summary The GET /download/ route uses string path verification via os.path.commonprefix, which allows an authenticated user to download files outside the DWDDIR download directory from "neighboring" directories whose absolute paths begin with the same prefix as DWDDIR e.g., .../downloadsbak,...

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-2026-1574 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...

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...

PYSEC-2026-1264 Composio Eval Injection Vulnerability

In composiohq/composio version 0.4.3, the mathematicalcalculator endpoint uses the unsafe eval function to perform mathematical operations. This can lead to arbitrary code execution if untrusted input is passed to the eval function...

PYSEC-2026-1730 Open WebUI Allows Arbitrary File Write via the `/models/upload` Endpoint

In open-webui version 0.3.8, the endpoint /models/upload is vulnerable to arbitrary file write due to improper handling of user-supplied filenames. The vulnerability arises from the usage of filepath = f"UPLOADDIR/file.filename" without proper input validation or sanitization. An attacker can...

PYSEC-2026-1549 LiteLLM Vulnerable to Denial of Service (DoS)

A vulnerability in BerriAI/litellm, as of commit 26c03c9, allows unauthenticated users to cause a Denial of Service DoS by exploiting the use of ast.literaleval to parse user input. This function is not safe and is prone to DoS attacks, which can crash the litellm Python server...

PYSEC-2026-1666 Mobile Security Framework (MobSF) Stored Cross-Site Scripting Vulnerability in "Diff or Compare" Functionality

Summary The application allows users to upload files with scripts in the filename parameter. As a result, a malicious user can upload a script file to the system. When users in the application use the "Diff or Compare" functionality, they are affected by a Stored Cross-Site Scripting vulnerabilit...

PYSEC-2026-1575 LLama Factory Remote OS Command Injection Vulnerability

Summary A critical remote OS command injection vulnerability has been identified in the Llama Factory training process. This vulnerability arises from improper handling of user input, allowing malicious actors to execute arbitrary OS commands on the host system. The issue is caused by insecure...

CVE-2026-6101

The AMP for WP – Accelerated Mobile Pages plugin for WordPress is vulnerable to Arbitrary File Write in versions up to and including 1.1.12. This is due to unsafe ZIP file extraction in the ampforwpsavelocalfont function combined with inadequate cleanup that fails to remove nested directories and...

CVE-2026-6101

The AMP for WP – Accelerated Mobile Pages plugin for WordPress is vulnerable to Arbitrary File Write in versions up to and including 1.1.12. This is due to unsafe ZIP file extraction in the ampforwpsavelocalfont function combined with inadequate cleanup that fails to remove nested directories and...