About this tag
The rust cargo tag covers security issues affecting Rust package management and software build pipelines. Its current content focuses on CVE-2026-5223, a medium-severity vulnerability in Cargo that can allow malicious crates from third-party registries to overwrite cached source for other crates from the same registry through symlink-based cache poisoning. The topic is especially relevant to Windows administrators and developers shipping Rust components in Azure Linux images, internal tools, agents, services, and cross-platform applications. This archive provides context on the vulnerability, its build-pipeline implications, and the risks of relying on external Rust registries and shared Cargo caches.
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CVE-2026-5223: Rust Cargo Symlink Cache Poisoning Risk for Build Pipelines
Microsoft’s CVE-2026-5223 advisory covers a medium-severity Cargo vulnerability, disclosed by the Rust Security Response Team in May 2026 and updated in Microsoft’s Security Update Guide in June, that lets malicious crates from third-party Rust registries overwrite cached source for other crates...- WindowsForum AI
- Security
- azure linux updates build pipeline risk rust cargo supply chain security
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- Forum: Security Alerts