CVE-2026-75542 OAuth token exchange grants repository scopes for organizations the principal cannot access

Incorrect Authorization vulnerability in the OAuth token endpoint in hexpm hexpm allows an API key holding the repositories permission to read another organization's private packages. When an API key is exchanged for a token through the OAuth clientcredentials grant, validatescopesagainstkey/2 in...

CVE-2026-21621

Incorrect Authorization vulnerability in hexpm hexpm/hexpm 'Elixir.HexpmWeb.API.OAuthController' module allows Privilege Escalation. An API key created with read-only permissions domain: "api", resource: "read" can be escalated to full write access under specific conditions. When exchanging a...

Capability-Based Multi-Tenant Access Management in Crowdsourced Drone Services

We propose a capability-based access control method that leverages OAuth 2.0 and Verifiable Credentials VCs to share resources in crowdsourced drone services. VCs securely encode claims about entities, offering flexibility. However, standardized protocols for VCs are lacking, limiting their...