{"id":"CVE-2026-77650","title":"The append-only-vec crate 0.1.9 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code exe…","summary":"The append-only-vec crate 0.1.9 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code exe…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-506"],"published":"2026-08-21","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:04:24.933","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77650","references":[{"url":"https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref","label":"cve@mitre.org"},{"url":"https://github.com/rustsec/advisory-db/issues/3161","label":"cve@mitre.org"},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0262.html","label":"cve@mitre.org"},{"url":"https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/","label":"cve@mitre.org"},{"url":"https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack","label":"cve@mitre.org"}],"tags":["nvd"],"epss":0.00434,"epssPercentile":0.3719,"ingestedAt":"2026-09-09T16:14:05.514Z","slug":"CVE-2026-77650","body":"## Overview\n\nThe append-only-vec crate 0.1.9 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}