"To earn this premier reward, you must demonstrate full administrative control, the equivalent of 'roles/owner' or complete IAM control, over arbitrary Google Cloud organizations or projects with no prior access or special project setup," said Chris Betz, Google Cloud's Chief Information Security Officer (CISO).
New $250,000 top-tier reward for Root‑in‑Cloud flaws
Google Cloud has added a $250,000 top-tier payout to its Cloud Vulnerability Reward Program (VRP) for what it calls "Root‑in‑Cloud" bugs. The program explicitly targets high‑impact architectural security flaws — examples named by Google include tenant‑isolation bypasses and complex cross‑service logic vulnerabilities that would allow an attacker to gain full administrative control over arbitrary Google Cloud organizations or projects.
What qualifies: the technical bar and prohibited dependencies
The criteria Google set are narrowly framed. To qualify for the $250,000 award, a researcher must demonstrate full administrative control equivalent to 'roles/owner' or complete Identity and Access Management (IAM) control over arbitrary organizations or projects without any prior access or special project setup. Google also says valid reports that demonstrate remote code execution (RCE) in underlying Google production infrastructure (Borg) or that achieve "root‑in‑prod" will be evaluated by the Google Cloud VRP panel for root‑in‑cloud eligibility.
Google listed several explicit exclusions. Exploits that depend on prior access to the victim project, compromised credentials, social engineering, or any form of user interaction are ineligible. Likewise, if researchers reach execution on Google production infrastructure, they must stop probing immediately: escalating privileges, obtaining production credentials, or lateral movement are not allowed and will result in disqualification.
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End the scrambleDeterministic proof‑of‑root and safe rules of engagement
Google emphasizes safe, testable proof mechanisms rather than live experimentation against customer resources. "High incentives require clear, safe rules of engagement. We never want researchers testing exploits against real customer projects," Cloud VRP Lead Michael Cote said. To that end, Google created a deterministic proof‑of‑root mechanism that uses a designated service account: researchers can cryptographically prove unauthorized access against that identity rather than performing uncontrolled tests in production.
The rules page for the Google Cloud VRP contains implementation specifics, including endpoint specifications, JSON payloads, and command‑line examples to guide researchers through the approved proof process.
Procedural review: RCE in Borg and the VRP panel
Google said that Remote Code Execution in Borg, its named underlying production orchestration infrastructure, and any condition that achieves "root‑in‑prod" will be fast‑tracked to the Cloud VRP panel for consideration under the root‑in‑cloud criteria. That language signals an internal review pathway for production‑level findings, while reiterating the program's prohibition on post‑exploitation activity that risks exposing real customer environments or production credentials.
What this means for security researchers, cloud customers, and procurement leaders
- Security researchers: The new reward elevates architectural, cross‑service, and tenant‑isolation research as high‑value work and provides a formal, cryptographic proof path to demonstrate findings without touching real customer projects. Researchers must also take care to avoid disallowed actions (escalation, credential theft, lateral movement) or risk disqualification.
- Cloud customers (enterprises and teams): Google’s public rules and the proof‑of‑root mechanism are intended to reduce the chance that external testing damages customer environments. Customers interested in assurance can look to Google’s stated safeguards as a commitment to protecting live projects while encouraging discovery of systemic flaws.
- Procurement and security leadership: The explicit, high dollar value for architectural faults signals that Google places a premium on discovering flaws that could lead to full administrative compromise; procurement leaders and security buyers should be aware that Google has formalized both a reward and safer proof methods for researchers focusing on these high‑impact risks.
Program context and payout history
The expansion follows Google's October suspension of submissions to its Open Source Software Vulnerability Rewards Program (OSS VRP) after receiving a flood of AI‑generated reports. Google has a long history with rewards programs: since launching its first Vulnerability Reward Program in 2010, the company says it has paid more than $81.6 million to thousands of security researchers worldwide. In 2025 Google paid a record‑breaking $17.1 million to over 700 researchers, a 40% increase from the $12 million it awarded in 2024.
For researchers seeking to engage under the new root‑in‑cloud rules, Google’s Cloud VRP rules page provides endpoint specifications, JSON payload examples, and CLI guidance to implement the designated service‑account proof of unauthorized access and to remain within the program’s stated safe boundaries.
