CVE-2026-42249

Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HTTP headers without validation. These...

CVE-2026-45156

Nextcloud vulnerable component: User OIDC handling; a missing signature verification allowed an ID4me authority to impersonate any user. Affected versions: 0.3.0–before 3.1.0, 5.0.0–before 5.1.0, and 6.0.0–before 6.4.0. Root cause: absent JWT/signature check in OIDC flow as described in the CVE d...

CVE-2026-42193 Plunk: SNS webhook forgery

Plunk is an open-source email platform built on top of AWS SES. Prior to version 0.9.0, the /webhooks/sns endpoint accepts Amazon SNS notification payloads from unauthenticated requests without verifying the SNS signature, certificate, or topic ARN, meaning anyone can forge a valid-looking webhoo...

CVE-2026-42249 Remote Code Execution in Ollama via Update Mechanism

Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HTTP headers without validation. These...

EUVD-2026-26211

Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HTTP headers without validation. These...

CVE-2026-42249

Ollama for Windows contains a Remote Code Execution vulnerability in its update mechanism due to improper handling of attacker‑controlled HTTP response headers. When downloading updates, the application constructs local file paths using values derived from HTTP headers without validation. These...

CVE-2026-42248 Missing Signature Verification for Updates in Ollama

Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust validation is performed before stagin...

CVE-2026-42248 Missing Signature Verification for Updates in Ollama

Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike other platforms, the Windows implementation of the update verification routine unconditionally returns success so no digital signature or trust validation is performed before stagin...

CVE-2026-42248

Affected product : Ollama for Windows. Vulnerabilities covered : CVE-2026-42248 (Missing signature verification for updates) and CVE-2026-42249 (Path traversal in update mechanism). Root cause : Windows update flow does not verify integrity/authenticity of downloaded update executables (CVE-2026-...

CVE-2026-6911

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the...

CVE-2026-6911

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the...

CVE-2026-6911 Authentication Bypass via Missing JWT Signature Verification in AWS Ops Wheel

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the...

CVE-2026-6911 Authentication Bypass via Missing JWT Signature Verification in AWS Ops Wheel

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the...

EUVD-2026-25576

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the...

BIT-MINIO-2026-40344 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

MinIO is a high-performance object storage system. Starting in 2023.05.18 and prior to 2026.04.11, an authentication bypass vulnerability in MinIO's Snowball auto-extract handler PutObjectExtractHandler allows any user who knows a valid access key to write arbitrary objects to any bucket without...

GHSA-9C4Q-HQ6P-C237 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

Impact Two authentication bypass vulnerabilities in MinIO's STREAMING-UNSIGNED-PAYLOAD-TRAILER code path allow any user who knows a valid access key to write arbitrary objects to any bucket without knowing the secret key or providing a valid cryptographic signature. Any MinIO deployment is...

EUVD-2026-20117

The Masteriyo LMS – Online Course Builder for eLearning, LMS & Education plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in versions up to and including 2.1.7. This is due to insufficient webhook signature verification in the handlewebhook function. The...

CVE-2026-31946

OpenOLAT OpenID Connect implicit flow (versions 10.5.4–before 20.2.5) does not verify JWT signatures. The JSONWebToken.parse() method discards the signature segment, and getAccessToken() validates only issuer/audience/state/nonce, without cryptographic verification against the IdP’s JWKS. This ca...

GHSA-MQPR-49JJ-32RC n8n: Webhook Forgery on Github Webhook Trigger

Impact An attacker who knows the webhook URL of a workflow using the GitHub Webhook Trigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node did not implement the HMAC-SHA256 signature verification that GitHub provides to authenticate webhook deliverie...

CVE-2025-59934

Formbricks (pre-4.0.1) is affected by missing JWT signature verification. A token validation path uses jwt.decode without signature checks, allowing an attacker who knows a user’s user.id to craft a JWT with alg: none and authenticate or reset the victim’s password. The same validator is used for...