INTERN(al) MSRC variant hunting: From multi-tenant authorization to Model Context Protocol

When security researchers submit a vulnerability report to MSRC, the Vulnerabilities and Mitigations V&M team reviews it, reproduces the issue, and determines severity. The team reviews all submissions from internal and external security researchers...

PYSEC-2012-35

OpenStack Keystone Essex 2012.1 and Folsom 2012.2 does not properly handle EC2 tokens when the user role has been removed from a tenant, which allows remote authenticated users to bypass intended authorization restrictions by leveraging a token for the removed user role...