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Researcher reports Azure API Connections enable cross-tenant compromise of backend services

According to Hacker News, a researcher says Azure API Connections flaws reached Key Vaults and Azure SQL databases and netted $200,000.

The short version

  • According to Hacker News, a security researcher reports cross-tenant compromise flaws in Azure API Connections.[Hacker News]
  • The reported flaws would give access to connected backend services, including Key Vaults and Azure SQL databases.[Hacker News]
  • The researcher says the vulnerabilities netted a total of $200,000, and these claims have not been independently verified.[Hacker News]
  • The researcher says a talk on the findings was given at Blue Hat Asia 2026, and recordings were not yet available.[Hacker News]

Key facts

  • A security researcher reports cross-tenant compromise vulnerabilities in Azure API Connections.[Hacker News]
  • The reported flaws would allow access to connected backend services, including Key Vaults and Azure SQL databases.[Hacker News]
  • The researcher describes other externally connected services, such as Jira or Salesforce, as also affected.[Hacker News]
  • The researcher says the vulnerabilities netted a total of $200,000.[Hacker News]
  • The researcher discussed the findings in a talk at Blue Hat Asia 2026.[Hacker News]

What remains uncertain

  • The claims rest on the researcher's account as reported by Hacker News alone, with no independent verification or vendor response included in the provided reporting.[Hacker News]
  • Full technical details and recordings of the Blue Hat Asia talk were not yet available at the time of reporting.[Hacker News]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.