Missing Authorization Validation on MLflow MPU Endpoints Leads to Cross-Resource Artifact Overwrite, Model Poisoning, and Cross-Boundary Command Execution on Model Load

Analyzed version: 5af88dc08a54d40dddfc019da9e7f0fd0fcf34e2 git describe: nightly-2300-g5af88dc08, local mlflow.version: 3.10.1.dev0 In --serve-artifacts mode, MLflow exposes MPU endpoints for large-file multipart uploads. However, its authorization logic only covers the /mlflow-artifacts/artifact...

Python Cryptographic Authority: Fail-Open in set_tlsext_servername_callback on pyopenssl via unhandled exceptions leads to security bypass

A vulnerability was discovered in the pyopenssl library's handling of the Server Name Indication SNI callback settlsextservernamecallback. The internal wrapper for this callback catches all Python exceptions raised by user code but returns 0 Success/SSLTLSEXTERROK to the underlying OpenSSL engine...

AWS VDP: Arbitrary Code Execution via Scanner Bypass in **aws-diagram-mcp-server** `exec()` Namespace

Description: The aws-diagram-mcp-server contains an arbitrary code execution vulnerability in diagramstools.py. User-supplied Python code is executed via execcode, namespace at line 305 with a namespace containing the full os module, urlretrieve, and Python builtins. A security scanner scanner.py...

PortSwigger Web Security: HTML Injection in DAST Trial Request Form Confirmation Email – PortSwigger

A vulnerability was discovered in the DAST trial request form on the website, where user input in the "First Name" field was not properly sanitized before being included in confirmation emails. This allowed the injection of arbitrary HTML content, which would be rendered in the recipient's email...

Node.js: Incomplete fix for CVE-2026-21637: loadSNI() in _tls_wrap.js lacks try/catch leading to Remote DoS

A flaw was discovered in the Node.js TLS error handling that left SNICallback invocations unprotected against synchronous exceptions. This represented an incomplete fix of the prior CVE-2026-21637 vulnerability, where the equivalent ALPN and PSK callbacks were already addressed. The issue could...

Authentication Bypass on FastAPI Routes (Job API, OTel API) When Basic Auth Enabled

Summary When MLflow is started with authentication enabled --app-name basic-auth and served via uvicorn ASGI, the FastAPI permission middleware only enforces authentication on /gateway/ routes. All other FastAPI routes -- including the Job API /ajax-api/3.0/jobs/ and the OpenTelemetry trace...

Ruby on Rails: Active Storage Vips Transformer Missing validate_transformation — CVE-2025-24293 Incomplete Fix

Summary The Active Storage Vips Transformer activestorage/lib/activestorage/transformers/vips.rb does not override validatetransformation. The ImageMagick transformer imagemagick.rb was hardened in the CVE-2025-24293 fix August 2025 with a method allowlist and argument denylist, but the Vips...

Authorization Bypass in SearchModelVersions Allows Any Authenticated User to Enumerate All Model Versions Regardless of Permissions

Summary MLflow's SearchModelVersions REST API endpoint GET /api/2.0/mlflow/model-versions/search and GraphQL query mlflowSearchModelVersions lack per-model authorization checks when basic auth is enabled. Any authenticated user can enumerate ALL model versions across ALL registered models,...

Improper Origin Validation in MLflow Assistant /ajax-api Endpoints Enables Browser-Mediated Local Command Execution

Description Analyzed project version: MLflow 3.9.0 /version, commit 6e61043b0ff5d845bea479d7e7ea24dcd4b2c629. In MLflow 3.9.0, a new feature called MLflow Assistant was introduced, intended only for local development and designed to integrate with Claude Code accepting requests only from loopback...

Arbitrary File Read via Prompt Tag Source Validation Bypass in CreateModelVersion

The createmodelversion handler in mlflow/server/handlers.py uses a client-controlled tag to decide whether to skip source path validation. When a CreateModelVersion request includes the tag mlflow.prompt.isprompt, the helper ispromptrequest returns True, and the entire source validation block...

SSRF in MLflow via user-controlled webhook URL parameter

Description A Server-Side Request Forgery SSRF vulnerability exists in the webhook creation functionality of MLflow. The createwebhook handler accepts a user-controlled url parameter and stores it without any validation. When webhooks are tested or triggered, the sendwebhookrequest function sends...

Monero: Inverted ternary in peerlist_manager::filter() allows unlimited whitelist entries per host via different ports

The peerlistmanager::filter function in the Monero project's p2p/netpeerlist.h file contained an incorrect ternary operator that operated on the wrong peer list. When called with 'white=true', it filtered the gray list instead of the white list. As a result, a single host could accumulate unlimit...

Node.js: Assertion error in node_url.cc via malformed URL format leads to Node.js crash

An assertion error in nodeurl.cc via malformed URL format leads to a Node.js crash. A flaw in the URL processing caused an assertion failure in the native code when url.format was called with a malformed internationalized domain name containing invalid characters, crashing the Node.js process. Th...

Basecamp: Improper Access Control in `fizzy.do` import flow allows cross-tenant ActionText reference resolution and data disclosure

The vulnerability allowed for cross-tenant ActionText reference resolution and data disclosure during the account import flow. The import process did not properly verify the ownership of the referenced records before minting signed global IDs, enabling an attacker to access and disclose data from...

RubyGems: Server-side ReDoS via user-controlled regex in OIDC Access Policy

The OIDC Access Policy implementation evaluated user-supplied regular expressions against JWT claim values using Ruby's Regexp engine without any timeout or complexity validation. The vulnerable code path was Regexp.newvalue.match?claimvalue, where value was fully user-controlled and claimvalue w...

Zip Slip path traversal in keras.utils.get_file(..., extract=True) archive extraction

Summary Keras' download helper keras.utils.getfile..., extract=True via keras/src/utils/fileutils.py extracts zip/tar archives and attempts to filter unsafe member paths. However, the filter computes its base directory as the process CWD resolvepath"." rather than the extraction target directory...

Node.js: Timing side-channel in HMAC verification via memcmp() in crypto_hmac.cc leads to potential MAC forgery

Vulnerability description not provided...

Node.js: Memory leak in Node.js HTTP/2 server via WINDOW_UPDATE on stream 0 leads to resource exhaustion

Vulnerability description not provided...

curl: MQTT Protocol Packet Injection via Unchecked CONNACK Remaining Length

I'm not sure if this is a vulnerability or intended behavior, but I noticed that curl MQTT implementation accepts CONNACK packets with Remaining Length values greater than 2, which appears to violate the MQTT v3.1.1 specification. According to the MQTT spec, CONNACK packets should have a Remainin...

Infinite Loop Denial of Service via Circular Dependencies in Functional Model Deserialization

Description A vulnerability in keras.src.models.functional.functionalfromconfig allows a Denial of Service DoS attack via an infinite loop. When reconstructing a Functional model from a configuration e.g., via keras.models.loadmodel, the deserialization logic fails to detect or break out of...