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-2026-1791 Picklescan vulnerable to Arbitrary File Writing

Summary Picklescan has got open and shutil in its default dangerous blocklist to prevent arbitrary file overwrites. However the module distutils isnt blocked and can be used for the same purpose ie to write arbitrary files. Details This is another vulnerability which impacts the downstream user. ...

PYSEC-2026-2040 Weblate has an arbitrary file read via symbolic links

Impact It was possible to read arbitrary files from the server file system using crafted symbolic links in the repository. Resources Thanks to Jason Marcello for responsible disclosure...

PYSEC-2026-1700 NiceGUI has a path traversal in app.add_media_files() allows arbitrary file read

Summary A directory traversal vulnerability in NiceGUI's App.addmediafiles allows a remote attacker to read arbitrary files on the server filesystem. Details Hello, I am Seungbin Yang, a university student studying cybersecurity. While reviewing the source code of the repository, I discovered a...

PYSEC-2026-1841 Pyrofork has a Path Traversal in download_media Method

Summary The downloadmedia method in Pyrofork does not sanitize filenames received from Telegram messages before using them in file path construction. This allows a remote attacker to write files to arbitrary locations on the filesystem by sending a specially crafted document with path traversal...

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-2026-1197 AstrBot has an arbitrary file read vulnerability in function _encode_image_bs64

AstrBot Project v3.5.22 has an arbitrary file read vulnerability in function encodeimagebs64. Since the encodeimagebs64 function defined in entities.py opens the image specified by the user in the request body and returns the image content as a base64-encoded string without checking the legitimac...

PYSEC-2026-1316 Dosage vulnerable to a Directory Traversal through crafted HTTP responses

Impact When downloadinging comic images, Dosage constructs target file names from different aspects of the remote comic page URL, image URL, page content, etc.. While the basename is properly stripped of directory-traversing characters, the file extension is taken from the HTTP Content-Type heade...

PYSEC-2026-1110 aiomysql allows arbitrary access to client files through vulnerability of a malicious MySQL server

Summary The client-side settings are not checked before sending local files to MySQL server, which allows obtaining arbitrary files from the client using a rogue server. Details It is possible to create a rogue MySQL server that emulates authorization, ignores client flags and requests arbitrary...

PYSEC-2026-1603 Mammoth is vulnerable to Directory Traversal

Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of...

PYSEC-2026-2071 ZenML is vulnerable to Path Traversal through its `PathMaterializer` class

ZenML version 0.83.1 is affected by a path traversal vulnerability in the PathMaterializer class. The load function uses ispathwithindirectory to validate files during data.tar.gz extraction, which fails to effectively detect symbolic and hard links. This vulnerability can lead to arbitrary file...

PYSEC-2026-2057 xml2rfc is vulnerable to arbitrary file reads through prepped files

Impact When generating PDF files, this vulnerability allows an attacker to read arbitrary files from the filesystem by injecting malicious link element into the prepped RFCXML. Workarounds Test untrusted input with link elements with rel="attachment" before processing. References This is related ...

PYSEC-2026-2058 xml2rfc has an arbitrary file read vulnerability

Impact When generating PDF files, this vulnerability allows an attacker to read arbitrary files from the filesystem by injecting malicious link element into the XML. Workarounds Test untrusted input with link elements with rel="attachment" before processing. Credits This vulnerability was reporte...

PYSEC-2026-1670 MobSF Vulnerable to Arbitrary File Write (AR-Slip) via Absolute Path in .a Extraction

Summary The vulnerability allows any user to overwrite any files available under the account privileges of the running process. Details As part of static analysis, iOS MobSF supports loading and parsing statically linked libraries .a. When parsing such archives, the code extracts the embedded...

PYSEC-2026-1271 Copier's safe template has arbitrary filesystem read/write access

Impact Copier's current security model shall restrict filesystem access through Jinja: - Files can only be read using % include ... %, which is limited by Jinja to reading files from the subtree of the local template clone in our case. - Files are written in the destination directory according to...

PYSEC-2026-1823 `pyLoad` has Path Traversal Vulnerability in `json/upload` Endpoint that allows Arbitrary File Write

Summary An authenticated path traversal vulnerability exists in the /json/upload endpoint of the pyLoad By manipulating the filename of an uploaded file, an attacker can traverse out of the intended upload directory, allowing them to write arbitrary files to any location on the system accessible ...

PYSEC-2026-1568 LlamaIndex is vulnerable to Path Traversal attack through its ObsidianReader class

A vulnerability in the ObsidianReader class in LlamaIndex Readers Integration: Obsidian before version 0.5.1 from the run-llama/llamaindex repository versions 0.12.23 to 0.12.28 allows for arbitrary file read through symbolic links. The ObsidianReader fails to resolve symlinks to their real paths...

SUSE CVE-2020-12265

The decompress package before 4.2.1 for Node.js is vulnerable to Arbitrary File Write via ../ in an archive member, when a symlink is used, because of Directory Traversal...

GO-2026-5827 gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host in go.senan.xyz/gonic

gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host in go.senan.xyz/gonic...

PYSEC-2026-1441 H2O Vulnerable to Arbitrary File Overwrite

In h2oai/h2o-3 version 3.46.0, the /99/Models/name/json endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the exportModelDetails function in ModelsHandler.java, where the user-controllable mexport.dir parameter is used to specify the file path for...