{"id":"MAL-2026-14336","title":"Malicious code in arrayref (crates.io)","summary":"Malicious code in arrayref (crates.io)","severity":"none","vendor":"arrayref","product":"arrayref","ecosystem":"rust","affected":["arrayref"],"published":"2026-08-20","updated":"2026-08-21","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/MAL-2026-14336","references":[{"url":"https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/"},{"url":"https://github.com/rustsec/advisory-db/issues/3161"}],"tags":["osv","rust"],"ingestedAt":"2026-08-21T19:23:48.910Z","slug":"MAL-2026-14336","body":"## Overview\n\narrayref 0.3.10 was published to crates.io from a maintainer account (droundy) that appears to be compromised. Unlike every prior release, 0.3.10 declares a dependency on the malicious crate proc-macro1. The arrayref source itself is unchanged genuine macro code, but Cargo compiles the declared dependency, so building any project that resolves arrayref 0.3.10 pulls in and builds proc-macro1, whose build script downloads and executes an architecture-specific remote binary at build time from https://23.254.165.112:9089/ and passes 23.254.165.112:443 as a command-and-control address. Part of a coordinated crates.io campaign on 2026-08-20 that also trojanized internment and append-only-vec. The malicious release has been removed from crates.io; releases 0.3.9 and earlier are unaffected.\n\n## Affected packages\n\n- `arrayref`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}