CVE-2025-36852— Build Cache Poisoning via Untrusted Pull Requests
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I. Basic Information for CVE-2025-36852
Vulnerability Information
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Vulnerability Title
Build Cache Poisoning via Untrusted Pull Requests
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
从非可信控制范围包含功能例程
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nx 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nx是Nx的一个应用软件。 Nx存在安全漏洞，该漏洞源于基于桶的远程缓存存在设计缺陷，可能导致将受损构件注入受信任的生产环境。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Niklas Portmann | Azure Based Remote Cache Plugin for Nx | 0 | cpe:2.3:a:niklas_portmann:nx-remotecache-azure:0:*:*:*:*:*:*:* | |
| Niklas Portmann | Minio Based Remote Cache Plugin for Nx | 0 | cpe:2.3:a:niklas_portmann:nx-remotecache-minio:0:*:*:*:*:*:*:* | |
| Niklas Portmann | Nx Remote Cache Utilities | 0 | cpe:2.3:a:niklas_portmann:nx-remotecache-custom:0:*:*:*:*:*:*:* | |
| Nx | AWS S3 Remote Cache Plugin for Nx | 0 | cpe:2.3:a:nx:s3-cache:0:*:*:*:*:*:*:* | |
| Nx | GCS Remote Cache Plugin for Nx | 0 | cpe:2.3:a:nx:gcs-cache:0:*:*:*:*:*:*:* | |
| Nx | Azure Blob Remote Cache Plugin for Nx | 0 | cpe:2.3:a:nx:azure-cache:0:*:*:*:*:*:*:* | |
| Nx | Shared File System Cache Plugin for Nx | 0 | cpe:2.3:a:nx:shared-fs-cache:0:*:*:*:*:*:*:* |
II. Public POCs for CVE-2025-36852
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|---|
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IV. Related Vulnerabilities
Same weakness: CWE-829
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OpenClaw < 2026.4.9 - Untrusted Provider Plugin Auto-enablem - CVE-2026-43003
OpenStack ironic-python-agent 安全漏洞 - CVE-2026-41396
OpenClaw < 2026.3.31 - Environment Variable Override of Plug
V. Comments for CVE-2025-36852
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