Overview
A critical vulnerability identified as CVE-2025-0982 affects the JavaScript Task feature in Google Cloud Application Integration. The flaw allows attackers to escape the sandbox environment and execute arbitrary, unsandboxed code through crafted JavaScript executed by the Rhino engine.
Technical Details
This vulnerability is classified under CWE-829: Inclusion of Functionality from Untrusted Control Sphere. It arises from the use of Rhino, an open-source JavaScript engine implemented in Java, which failed to enforce proper sandboxing in Application Integration’s JavaScript Tasks.
When malicious JavaScript code is injected into the task feature, it can bypass expected security restrictions and interact directly with the underlying system in ways that violate the sandbox boundaries. This functionality bypass is also categorized under CAPEC-554.
Severity and CVSS Score
The vulnerability has been assigned a CVSS 4.0 base score of 9.4 (Critical), with the following vector string:
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- Confidentiality & Integrity Impact: High
- Availability Impact: None
Although the attack requires a high level of sophistication, no user interaction or prior privileges are needed, which increases the severity from an exposure perspective.
Mitigation and Vendor Response
Google has addressed this issue by deprecating the use of the Rhino engine in Application Integration, effective January 24, 2025. No additional mitigation steps are required, and the transition away from Rhino eliminates the vulnerable component from the platform.
Recommendations
- Ensure your environment is not relying on outdated or unsupported JavaScript execution engines like Rhino.
- Confirm that Application Integration environments have transitioned away from Rhino as per Google’s release notes.
- Avoid including untrusted code in integration workflows or task definitions, even in sandboxed environments.
Conclusion
CVE-2025-0982 demonstrates how deeply integrated third-party engines like Rhino can become a liability when not adequately sandboxed. While Google has acted preemptively by removing support, users must verify that their systems are updated accordingly to avoid lingering exposure.
For additional details, review the official documentation from Google: