jupyterlab-git extension: Stored XSS leading to RCE

OverviewAmazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in thePlainTextDiff.ts component, where the createHeader method passes Git filenames directly to...

PYSEC-2026-2395 Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

Summary The AWS Bedrock AgentCore Python SDK bedrock-agentcore is an open-source SDK that enables developers to build, deploy, and manage agents on AWS Bedrock AgentCore. An issue exists in the installpackages method of the Code Interpreter client where crafted package name arguments can bypass...

PYSEC-2026-2541 jupyterlab-git extension: Stored XSS leading to RCE

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

PYSEC-2026-2540 jupyterlab-git extension: Stored XSS leading to RCE

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

jupyterlab-git extension: Stored XSS leading to RCE

OverviewAmazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in thePlainTextDiff.ts component, where the createHeader method passes Git filenames directly to...

Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

SummaryThe AWS Bedrock AgentCore Python SDK bedrock-agentcore is an open-source SDK that enables developers to build, deploy, and manage agents on AWS Bedrock AgentCore. An issue exists in the installpackages method of the Code Interpreter client where crafted package name arguments can bypass...

jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

Summaryjupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlabgit/handlers.py:91 to enforce the admin-configured excludedpaths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive filesystem...

PYSEC-2026-2539 jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

Summary jupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlabgit/handlers.py:91 to enforce the admin-configured excludedpaths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive filesyste...

Pipecat: Telephony WebSocket `/ws` Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID

Development Runner Telephony WebSocket /ws Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID SummaryThe pipecat development runner registers a /ws WebSocket endpoint for telephony testing that accepts connections without any authentication. An unauthenticated remote attacker who c...

PYSEC-2026-2860 pdfkit: Path traversal in from_string

In JazzCore python-pdfkit 1.0.0, the fromstring method enables the execution of JavaScript code within the context of the server application and the exfiltration of local files...

pdfkit: Path traversal in from_string

In JazzCore python-pdfkit 1.0.0, the fromstring method enables the execution of JavaScript code within the context of the server application and the exfiltration of local files...

PYSEC-2026-2878 Pipecat: Telephony WebSocket `/ws` Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID

Development Runner Telephony WebSocket /ws Unauthenticated Call-Control Abuse via Attacker-Supplied Call SID Summary The pipecat development runner registers a /ws WebSocket endpoint for telephony testing that accepts connections without any authentication. An unauthenticated remote attacker who...

PYSEC-2026-2736 Open WebUI: Sibling-Prefix Path Traversal via /cache/{path}

Summary A path traversal vulnerability exists in open-webui's cache file serving endpoint that allows any authenticated user to read files from sibling directories outside the intended cache directory, by exploiting an incomplete startswith containment check that lacks a trailing path separator...

Open WebUI BOLA: `search_knowledge_files` Allows Unauthorized Knowledge Base File Enumeration

SummaryOpen WebUI has a Broken Object Level Authorization BOLA vulnerability in the builtin searchknowledgefiles tool.When native function calling is enabled and the selected model has no attached knowledge bases, an authenticated user can call searchknowledgefiles with an arbitrary knowledgeid...

Open WebUI: Any authenticated user can read other users' private notes via Socket.IO

SummaryThe ydoc:document:join Socket.IO handler checks note ownership only when the documentid starts with note: colon. However, the YdocManager storage layer normalizes all document IDs by replacing colons with underscores documentid.replace":", "". An attacker can join a document room using not...

PYSEC-2026-2721 Open WebUI BOLA: `search_knowledge_files` Allows Unauthorized Knowledge Base File Enumeration

Summary Open WebUI has a Broken Object Level Authorization BOLA vulnerability in the builtin searchknowledgefiles tool. When native function calling is enabled and the selected model has no attached knowledge bases, an authenticated user can call searchknowledgefiles with an arbitrary knowledgeid...

PYSEC-2026-2712 Open WebUI: Any authenticated user can read other users' private notes via Socket.IO

Summary The ydoc:document:join Socket.IO handler checks note ownership only when the documentid starts with note: colon. However, the YdocManager storage layer normalizes all document IDs by replacing colons with underscores documentid.replace":", "". An attacker can join a document room using no...

Open WebUI: Sibling-Prefix Path Traversal via /cache/{path}

SummaryA path traversal vulnerability exists in open-webui's cache file serving endpoint that allows any authenticated user to read files from sibling directories outside the intended cache directory, by exploiting an incomplete startswith containment check that lacks a trailing path separator.Th...

WsgiDAV encoded dot segments can escape filesystem share roots

ImpactWsgiDAV 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. PatchesThe issue is fixed with version 4.3.4. PreconditionsThe practical impact depends on the deployment.The deployment use...

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...