PYSEC-2026-2861 PDM wheel installation leads to Path Traversal via overridden write_to_fs

InstallDestination.writetofs in src/pdm/installers/installers.py overrides the base class to add symlink/hardlink support but replaces the safe pathwithdestdir which validates via Path.resolve + isrelativeto with a bare os.path.join that performs no path validation. A malicious wheel with travers...

PYSEC-2026-3428 WsgiDAV encoded dot segments can escape filesystem share roots

Impact WsgiDAV 4.3.3 can allow a WebDAV request path containing an encoded parent-directory segment to escape the configured filesystem share root in a specific path layout. Patches The issue is fixed with version 4.3.4. Preconditions The practical impact depends on the deployment. The deployment...

PYSEC-2026-2532 Jupyter Server vulnerable to Path Traversal via incorrect root directory boundary check in _get_os_path()

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the getospath function within jupyterserver/services/contents/fileio.py. The check uses startswithroot without appending a trailing path separator, allowing sibling...

PYSEC-2026-3429 xiaomusic contains an unauthenticated path traversal vulnerability

xiaomusic v0.5.7 contains an unauthenticated path traversal vulnerability in the GET /music/filepath:path endpoint that allows unauthenticated attackers to read arbitrary files outside the intended music directory by exploiting an incomplete path prefix check. Attackers can request files from...

PYSEC-2026-3065 Shamefile has an arbitrary file read via shamefile.yaml in shame next

Impact A path traversal vulnerability in shame next allows an attacker-controlled shamefile.yaml to disclose contents of files outside the repository, one line at a time, to the terminal of a user who runs the command. See patch commit for technical details. Patches Fixed in 0.1.7. Upgrade to...

PYSEC-2026-2426 compliance-trestle Profile Import has an Arbitrary File Read via trestle:// URI and Relative Path Traversal

Summary The compliance-trestle library's profile import mechanism resolves trestle:// URIs and relative file paths by joining them with trestleroot and calling .resolve, but performs no boundary check to ensure the resolved path stays within the trestle workspace. An attacker can craft a maliciou...

PYSEC-2026-2423 compliance-trestle - jinja has an Arbitrary File Write via Path Traversal

Relevant Products/Components: trestle/core/commands/author/jinja.py trestle author jinja --- Detailed Description: The -o/--output argument in trestle author jinja allows writing files outside the intended workspace. The application does not properly validate: ../ ..\ absolute paths This allows...

PYSEC-2026-2427 compliance-trestle Vulnerable to SSRF in Remote Fetching Subsystem

A source code audit led to the discovery of three significant security vulnerabilities in the trestle/core/remote/cache.py module. Finding 1 Critical: SSRF CWE-918 The HTTPSFetcher.dofetch method passes a user-supplied URL directly to requests.get without validation. This allows an attacker to...

PYSEC-2026-2424 compliance-trestle Remote Fetching Mechanism has an Arbitrary File Write via Cache Path Traversal

Summary The compliance-trestle library's remote fetching cache mechanism HTTPSFetcher and SFTPFetcher constructs the local cache file path from the URL path component without sanitizing path traversal sequences ../. When a remote OSCAL profile references a URL with traversal in its path, the HTTP...

PYSEC-2026-2384 AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username

Summary AsyncSSH 2.22.0 expands the OpenSSH-compatible AuthorizedKeysFile %u token with the raw SSH username during pre-authentication server config reload. A server configured with a documented per-user key pattern such as AuthorizedKeysFile authorizedkeys/%u can be made to read an authorized-ke...

PYSEC-2026-3081 Taipy contains a path traversal vulnerability

Taipy 4.1.1, fixed in commit 129fd40, contains a path traversal vulnerability in the ElementLibrary.getresource method in taipy/gui/extension/library.py that allows unauthenticated attackers to escape the intended module directory by exploiting an incomplete path containment check using...

AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username

SummaryAsyncSSH 2.22.0 expands the OpenSSH-compatible AuthorizedKeysFile %u token with the raw SSH username during pre-authentication server config reload. A server configured with a documented per-user key pattern such as AuthorizedKeysFile authorizedkeys/%u can be made to read an authorized-key...

PYSEC-2026-2999 Regression in pymdownx.snippets reintroduces sibling-prefix path traversal bypass despite restrict_base_path

Summary pymdownx.snippets has a regression of the CVE-2023-32309 / GHSA-jh85-wwv9-24hv fix. With restrictbasepath: True the default, the current filename.startswithbase containment check does not enforce a directory boundary. As a result, a markdown snippet directive can read files from sibling...

PYSEC-2026-2671 Mobile Verification Toolkit (MVT): Path Traversal via unsanitized File identifiers in iOS Backup processing

Summary The fileID field from Manifest.db a SQLite database inside iOS backups, generated by the device is used directly in filesystem path construction without validation. This affects two commands through a shared code path: - mvt-ios decrypt-backup decrypt.py: fileid is used to construct both...

PYSEC-2026-2420 CloakBrowser: Unauthenticated path traversal via fingerprint parameter in cloakserve leads to arbitrary directory deletion

The cloakserve CDP multiplexer uses the user-supplied fingerprint query parameter directly as a filesystem path component when creating Chrome profile directories. An unauthenticated attacker who can reach the cloakserve port can supply a crafted fingerprint value containing path traversal...

PYSEC-2026-2380 AstrBot: File upload vulnerability in the function post_file of the file astrbot/dashboard/routes/chat.py

A vulnerability was detected in AstrBotDevs AstrBot up to 4.23.5. Impacted is the function postfile of the file astrbot/dashboard/routes/chat.py of the component File Upload Handler. The manipulation of the argument filename results in path traversal. It is possible to launch the attack remotely...

PYSEC-2026-2877 Pipecat: Path Traversal in Pipecat Runner `/files` Endpoint — Arbitrary File Read via `%2F`-Encoded Separator

Summary A path traversal vulnerability exists in Pipecat's development runner src/pipecat/runner/run.py. When the runner is started with the --folder flag, it exposes a GET /files/filename:path download endpoint. The filename path parameter is concatenated directly onto args.folder with no...

PYSEC-2026-2868 pgAdmin 4 File Manager has symbolic-link path traversal

Symbolic-link path traversal CWE-61, CWE-22 in pgAdmin 4 File Manager. checkaccesspermission used os.path.abspath, which resolves '..' but does not resolve symbolic links, while the subsequent kernel write follows symlinks. An authenticated user could plant a symbolic link inside their own storag...

PYSEC-2026-2737 Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

PYSEC-2026-2717 Open WebUI Vulnerable to Arbitrary File Upload and Path Traversal

CONFIDENTIAL KL-CAN-2024-002 Vulnerability Details | | Field | Value | |---|-------|-------| | 1 | Discoverer | Jaggar Henry & Sean Segreti of KoreLogic, Inc. | | 2 | Date Submitted | 2024.03.12 | | 3 | Title | Open WebUI Arbitrary File Upload + Path Traversal | | 5 | Affected Vendor | Open WebUI...