CVE-2026-77650

{"id": "CVE-2026-77650", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77650", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-21T13:18:56.634996Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "droundy", "product": "append-only-vec", "versions": [{"status": "affected", "version": "0.1.9", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-21T01:17:01.993", "references": [{"url": "https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref", "source": "cve@mitre.org"}, {"url": "https://github.com/rustsec/advisory-db/issues/3161", "source": "cve@mitre.org"}, {"url": "https://rustsec.org/advisories/RUSTSEC-2026-0262.html", "source": "cve@mitre.org"}, {"url": "https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/", "source": "cve@mitre.org"}, {"url": "https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack", "source": "cve@mitre.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-506"}]}], "descriptions": [{"lang": "en", "value": "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 execution."}], "lastModified": "2026-09-09T16:04:24.933", "sourceIdentifier": "cve@mitre.org"}