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...

Open WebUI's Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts

Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts Affected ComponentFolder creation endpoint and form model:- backend/openwebui/models/folders.py lines 72-77, FolderForm with extra='allow'- backend/openwebui/models/folders.py lines 95-106, insertnewfolder...

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-2026-2734 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-2026-2599 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...

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...

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...

Apache Superset Improper Authorization allows low-privileged users to bypass access controls

An Improper Authorization vulnerability exists in Apache Superset that allows a low-privileged user to bypass data access controls. When creating a dataset, Superset enforces permission checks to prevent users from querying unauthorized data. However, an authenticated attacker with permissions to...

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...

Access control vulnerable to user data deletion by anonynmous users

ImpactAnonymous users can delete the user data maintained by an AccessControl.userfolder.UserFolder which may prevent any privileged access. PatchesThe problem is fixed in version 7.2. WorkaroundsThe problem can be fixed by adding dataroles = to AccessControl.userfolder.UserFolder...

PYSEC-2026-2326 Access control vulnerable to user data deletion by anonynmous users

Impact Anonymous users can delete the user data maintained by an AccessControl.userfolder.UserFolder which may prevent any privileged access. Patches The problem is fixed in version 7.2. Workarounds The problem can be fixed by adding dataroles = to AccessControl.userfolder.UserFolder. References...

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...

EUVD-2026-43287

The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail...

CVE-2026-14453 A user with low privileges can inject SSTI templates that can lead to RCE in open-tickets

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...

CVE-2026-14165

An Authorization Bypass Through User-Controlled Key vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5 could allow an attacker to access data of other users without authorization...

CVE-2026-10106 Unauthorized users can trigger interactive post actions in private channels via action cookie channel mismatch in Mattermost

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to verify that the channel referenced in an action cookie matches the channel of the target post, which allows an authenticated user without access to a private channel to trigger interactive post actions on posts in th...