Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint

SummaryLangflow is vulnerable to Path Traversal in the Knowledge Bases API POST /api/v1/knowledgebases. This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw ...

PYSEC-2026-2566 Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint

Summary Langflow is vulnerable to Path Traversal in the Knowledge Bases API POST /api/v1/knowledgebases. This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw...

PYSEC-2026-2479 FlaskBB: SSRF in get_image_info() via unrestricted avatar URL

Summary A Server-Side Request Forgery SSRF vulnerability in getimageinfo allows any authenticated user to force the server to send HTTP requests to arbitrary internal endpoints, including cloud metadata services e.g., AWS 169.254.169.254. This is a blind SSRF with confirmed internal port scanning...

PYSEC-2026-2738 Open WebUI Vulnerable to Cross-Site Request Forgery (CSRF) via Image URL Manipulation

Summary An application-wide Cross-Site Request Forgery CSRF vulnerability was found Open-WebUl's image uploading functionality. An attacker can set an image URL to a malicious endpoint, allowing them to perform actions on behalf of a victim user. Any authenticated user can exploit this...

Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file

SummaryA missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. DetailsAll files/ related endpoints lack permission checks. Listing all filesFor example, let's see how file listing is...

PYSEC-2026-3421 wger Vulnerable to IDOR: Authenticated Users Can Read Any User's Private Workout Session Data via Template Routine API

Summary Any authenticated user can read another user's private workout session notes, exercise history, and training statistics by calling the /logs/ and /stats/ actions on a routine they do not own. The RoutinePermission class grants read access to any authenticated user when a routine has...

PYSEC-2026-2753 Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file

Summary A missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. Details All files/ related endpoints lack permission checks. Listing all files For example, let's see how file listing ...

PYSEC-2026-2754 Open WebUI's Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show

Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show Affected Component Ollama proxy endpoints missing model access control: - backend/openwebui/routers/ollama.py lines 955-995, generatecompletion - backend/openwebui/routers/ollama.py lines 835-881, emb...

Open WebUI's responses passthrough endpoint lacks access control authorization

SummaryThe /responses endpoint in the OpenAI router accepts any authenticated user and forwards requests directly to upstream LLM providers without enforcing per-model access control. While the primary chat completion endpoint generatechatcompletion checks model ownership, group membership, and...

PYSEC-2026-2734 Open WebUI's responses passthrough endpoint lacks access control authorization

Summary The /responses endpoint in the OpenAI router accepts any authenticated user and forwards requests directly to upstream LLM providers without enforcing per-model access control. While the primary chat completion endpoint generatechatcompletion checks model ownership, group membership, and...

PYSEC-2026-2725 open-webui Vulnerable to Stored XSS via Model Description

!IMPORTANT Relationship to CVE-2024-7990 CVE-2024-7990 issued by huntr.dev, March 2025 describes a stored XSS in the same field — the model description — but exploits a different bypass mechanism: a second-order injection through the sanitizeResponseContent function's video-tag placeholder...

PYSEC-2026-2599 LiteLLM: Authenticated command execution via MCP stdio test endpoints

Impact Two endpoints used to preview an MCP server before saving it — POST /mcp-rest/test/connection and POST /mcp-rest/test/tools/list — accepted a full server configuration in the request body, including the command, args, and env fields used by the stdio transport. When called with a stdio...

PYSEC-2026-2567 Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check

Vulnerability IDOR in GET/PATCH/DELETE /api/v1/flow/flowid The readflow helper in src/backend/base/langflow/api/v1/flows.py branched on the AUTOLOGIN setting to decide whether to filter by userid. When AUTOLOGIN was False i.e., authentication was enabled, neither branch enforced an ownership chec...

Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

SummaryAny authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a regular user with read access to a shared knowledge base can obtain file UUIDs via GET /api/v1/knowledge/id/files an...

Apache Superset allows authenticated users to view sensitive data without explicit permissions

A Sensitive Data Exposure vulnerability exists in Apache Superset allowing authenticated users to retrieve sensitive user information. The Tag endpoint disabled by default allows users to retrieve a list of objects associated with a specific tag.When these associated objects include Users, the AP...

Rucio WebUI Vulnerable to Stored Cross-site Scripting (XSS) through Custom Rule Function

SummaryA stored Cross-site Scripting XSS vulnerability was identified in the Custom Rules function of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of...

PYSEC-2026-2375 Apache Superset allows authenticated users to view sensitive data without explicit permissions

A Sensitive Data Exposure vulnerability exists in Apache Superset allowing authenticated users to retrieve sensitive user information. The Tag endpoint disabled by default allows users to retrieve a list of objects associated with a specific tag. When these associated objects include Users, the A...

PYSEC-2026-2493 OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access

An issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbitrary file access can occur via custom QCOW2 external data. By supplying a crafted QCOW2 image that references a specific data file path, an authenticated user may convince systems to...

CVE-2026-62147 Tempo-operator: tempo operator: query rbac bypass

The Tempo Operator's gateway component failed to consistently apply namespace-scoped redaction on some query API response paths when query RBAC was enabled, allowing an authenticated user to read span attributes belonging to other tenants' namespaces...

EUVD-2026-43316

This vulnerability is a critical Server-Side Template Injection SSTI in Centreon's centreon-open-tickets module that leads to Remote Code Execution. The messageconfirm field is stored without sanitization and rendered via Smarty with no security policy enabled, allowing any authenticated user, to...