Project
A core Rust crate that wraps the compiler's procedural-macro API in a stable, portable form, widely used by macro libraries like syn and quote.
Malicious arrayref 0.3.10 was downloaded 2,285 times from crates.io in the 86 minutes before Rust's security response team deleted it on August 20. Lockfiles still pinned to 0.3.9 kept most builds away from its unsandboxed build-script payload.
Reality
Malicious versions of three Rust crates ran code at compile time on August 20. Wiz says the infrastructure overlaps with DPRK operations, so the campaign should be treated as live.
Perspective Coverage
6 publishersReality
The Rust Security Response Team deleted proc-macro1 and arrayref 0.3.10 on August 20 after a build script fetched and launched a binary. The lure was a yank warning.
Perspective Coverage
7 publishersReality
Wiz says a compile-time payload reached builds through a typosquatted dependency, and the attacker yanked every clean arrayref release so the responsible fix resolved to the poisoned one.
Reality
Compiling any project that resolved the poisoned crate on August 20 was enough to run a credential stealer. Wiz links the infrastructure to DPRK-attributed campaigns.
Reality