CVE-2026-77650
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-506 |
| Vendor | droundy |
| Product | append-only-vec |
| Published | Aug 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
droundy / append-only-vec
0.1.9
References
blog.rust-lang.org: https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref github.com: https://github.com/rustsec/advisory-db/issues/3161 stepsecurity.io: https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack safedep.io: https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/ rustsec.org: https://rustsec.org/advisories/RUSTSEC-2026-0262.html