PYSEC-2026-2752 Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Cross-User File Access via Unchecked fileid in Folder Knowledge and Knowledge-Base Attach Endpoints Summary Multiple endpoints accept a user-supplied fileid and attach the referenced file to a resource the caller controls folder knowledge, knowledge-base contents without verifying that the caller...

PYSEC-2026-2692 Open WebUI: shared-chat branch ignores access_type, allowing unauthorized file deletion

Summary Any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/id when the target file is referenced in any shared chat. The hasaccesstofile authorization gate unconditionally grants access through its shared-chat branch. It checks neither the requesting...

PYSEC-2026-2699 Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

PYSEC-2026-3069 Snorkel BaseLabeler.load uses an unsafe pickle.load

The snorkel library thru v0.10.0 contains a critical insecure deserialization vulnerability CWE-502 in the BaseLabeler.load method of the BaseLabeler class. The method loads serialized labeler models using the unsafe pickle.load function on user-supplied file paths without any validation or...

PYSEC-2026-2710 Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite

Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite Affected Component Retrieval web/YouTube processing endpoints: - backend/openwebui/routers/retrieval.py lines 1810-1837, processweb - backend/openwebui/routers/retrieval.py the parallel processyoutube endpoint -...

PYSEC-2026-2719 Open WebUI's Base Model Routing Bypasses Access Control via Model Chaining

Base Model Routing Bypasses Access Control via Model Chaining Affected Component Model chaining via basemodelid: - backend/openwebui/routers/models.py lines 170-214, createnewmodel - backend/openwebui/routers/models.py lines 254-308, importmodels - backend/openwebui/main.py lines 1696-1711, base...

PYSEC-2026-2632 mcpo-simple-server has a Path Traversal issue

A weakness has been identified in getsimpletool mcpo-simple-server up to 0.2.0. Affected is the function deletesharedprompt of the file src/mcposimpleserver/services/promptmanager/basemanager.py. This manipulation of the argument detail causes relative path traversal. It is possible to initiate t...

PYSEC-2026-2924 PraisonAI: SSRF via Unvalidated api_base in passthrough() Fallback

Summary passthrough and apassthrough in praisonai accept a caller-controlled apibase parameter that is concatenated with endpoint and passed directly to httpx.Client.request when the litellm primary path raises AttributeError. No URL scheme validation, private IP filtering, or domain allowlist is...

PYSEC-2026-2742 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Summary Any 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 a...

PYSEC-2026-2693 Open WebUI has unauthorized deletion of knowledge files

Summary An access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin, but NOT that the file actually belongs to this knowledge base. It is thus possible to delete arbitrary files from...

PYSEC-2026-2474 FastMCP OAuth Proxy token reuse across MCP servers

While testing the OAuth Proxy implementation, it was noticed that the server does not properly respect the resource parameter submitted by the client in the authorization and token request. Instead of issuing the token explicitly for this MCP server, the token is issued for the baseurl passed to...

PYSEC-2026-3140 Tensorflow vulnerable to Out-of-Bounds Read

Impact When the BaseCandidateSamplerOp function receives a value in trueclasses larger than rangemax, a heap oob vuln occurs. python tf.rawops.ThreadUnsafeUnigramCandidateSampler trueclasses=0x100000,1, numtrue = 2, numsampled = 2, unique = False, rangemax = 2, seed = 2, seed2 = 2 Patches We have...

MAL-2026-10430 Malicious code in prettier-plugin-base (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 6e4c522699877c1eca1bb9c838a443e3c4bfa21950cf5c5b1d23182ae91a534e The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

Malicious code in prettier-plugin-base (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 6e4c522699877c1eca1bb9c838a443e3c4bfa21950cf5c5b1d23182ae91a534e The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

MAL-2026-10420 Malicious code in path-addon-extend (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector b383636076e2701a372675c281ee82463d97529ed7d8db027276aa8a8b68b966 path-addon-extend presents itself as a copy of Node's built-in path module. On module load, path.js issues an HTTPS GET to a base64-obscured URL that...

MAL-2026-10413 Malicious code in eth-base (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector bcc98bc680f3d0b8c6dcf396d9f2425a5153658259014384cedf82698413755b The published lib/index.js contains 60KB of obfuscated JavaScript appended after a copy of the legitimate web3.js web3-core-subscriptions module. On...

Malicious code in eth-base (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector bcc98bc680f3d0b8c6dcf396d9f2425a5153658259014384cedf82698413755b The published lib/index.js contains 60KB of obfuscated JavaScript appended after a copy of the legitimate web3.js web3-core-subscriptions module. On...

Malicious code in dotnet-runtime-base (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector c10c75766303f8c3bf261487e341e537f103116026309006ab71d977aacdd235 The package's postinstall lifecycle script package.json line 7: "postinstall": "node install.js" runs install.js, which on Windows writes a PowerShel...

CVE-2026-56259

Crawl4AI before 0.8.8 contains credential exfiltration vulnerabilities in the Docker API server that allow attackers to redirect LLM API calls to attacker-controlled endpoints and read arbitrary environment variables. Attackers can exploit the unauthenticated /md, /llm, and /llm/job endpoints by...

CVE-2026-56259

CVE-2026-56259 affects Crawl4AI prior to 0.8.8. A credential-exfiltration vulnerability exists in the Docker API server that lets an attacker redirect LLM API calls to attacker-controlled endpoints and read environment variables. By targeting unauthenticated endpoints /md, /llm, and /llm/job and ...