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Date	Provider	Score	Summary
21 Aug 2026, 10:57 PM	The Register	7.0	Hackers poison popular Rust crates to steal developers' credentials Attackers compromised a legitimate Rust crate maintainer's credentials and published poisoned versions of arrayref (0.3.10), internment (0.8.7), and append-only-vec (0.1.9) on crates.io, each live for 86-107 minutes before removal. The malicious code hid in a typosquat crate called proc-macro1 (mimicking proc-macro2), using its build.rs script to download OS-specific infostealer payloads during compilation that targeted Chromium-based browser data including Chrome, Brave, and Edge profiles. Why: If you build Rust projects with Cargo, pin your dependencies to specific versions or use a lockfile and a private registry mirror rather than pulling latest from crates.io in CI. The attack exploited Cargo's automatic execution of build.rs scripts during compilation, meaning any crate in your dependency tree can run arbitrary code on your build machine, not just at runtime. Review whether your CI environment isolates build steps from developer credentials and browser sessions. supply-chain-attack rust security cargo infostealer

Date

Provider

Score

Summary

21 Aug 2026, 10:57 PM

The Register

7.0

Hackers poison popular Rust crates to steal developers' credentials

Attackers compromised a legitimate Rust crate maintainer's credentials and published poisoned versions of arrayref (0.3.10), internment (0.8.7), and append-only-vec (0.1.9) on crates.io, each live for 86-107 minutes before removal. The malicious code hid in a typosquat crate called proc-macro1 (mimicking proc-macro2), using its build.rs script to download OS-specific infostealer payloads during compilation that targeted Chromium-based browser data including Chrome, Brave, and Edge profiles.

Why: If you build Rust projects with Cargo, pin your dependencies to specific versions or use a lockfile and a private registry mirror rather than pulling latest from crates.io in CI. The attack exploited Cargo's automatic execution of build.rs scripts during compilation, meaning any crate in your dependency tree can run arbitrary code on your build machine, not just at runtime. Review whether your CI environment isolates build steps from developer credentials and browser sessions.