Nx Azure Based Remote Cache Plugin for Nx Pull Request inclusion of functionality from untrusted control sphere

Summaryinfo

A vulnerability classified as very critical has been found in Nx Azure Based Remote Cache Plugin for Nx, Minio Based Remote Cache Plugin for Nx, Nx Remote Cache Utilities, AWS S3 Remote Cache Plugin for Nx, GCS Remote Cache Plugin for Nx, Azure Blob Remote Cache Plugin for Nx and Shared File System Cache Plugin for Nx. This affects an unknown part of the component Pull Request Handler. The manipulation leads to inclusion of functionality from untrusted control sphere. This vulnerability is uniquely identified as CVE-2025-36852. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Nx Azure Based Remote Cache Plugin for Nx, Minio Based Remote Cache Plugin for Nx, Nx Remote Cache Utilities, AWS S3 Remote Cache Plugin for Nx, GCS Remote Cache Plugin for Nx, Azure Blob Remote Cache Plugin for Nx and Shared File System Cache Plugin for Nx and classified as very critical. This issue affects some unknown processing of the component Pull Request Handler. The manipulation with an unknown input leads to a inclusion of functionality from untrusted control sphere vulnerability. Using CWE to declare the problem leads to CWE-829. The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A critical security vulnerability exists in remote cache extensions for common build systems utilizing bucket-based remote cache (such as those using Amazon S3, Google Cloud Storage, or similar object storage) that allows any contributor with pull request privileges to inject compromised artifacts from an untrusted environment into trusted production environments without detection.  The vulnerability exploits a fundamental design flaw in the "first-to-cache wins" principle, where artifacts built in untrusted environments (feature branches, pull requests) can poison the cache used by trusted environments (protected branches, production deployments).  This attack bypasses all traditional security measures including encryption, access controls, and checksum validation because the poisoning occurs during the artifact construction phase, before any security measures are applied.

The advisory is shared at nx.app. The identification of this vulnerability is CVE-2025-36852 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/11/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-17809). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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• AWS S3 Remote Cache Plugin for Nx
• Azure Based Remote Cache Plugin for Nx
• Azure Blob Remote Cache Plugin for Nx
• GCS Remote Cache Plugin for Nx
• Minio Based Remote Cache Plugin for Nx
• Nx Remote Cache Utilities
• Shared File System Cache Plugin for Nx

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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