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Critical 9.8Published Aug 21, 2026
CVE-2026-77650The 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-cont…
Updated under an hour ago ()
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It affects droundy append-only-vec. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-506
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Deferred
- Record last updated
- Aug 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
droundy append-only-vec droundy:append_only_vec (from the name) | 0.1.9 | CNA record |
References
- https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref
- https://github.com/rustsec/advisory-db/issues/3161
- https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack
- https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/
- https://rustsec.org/advisories/RUSTSEC-2026-0262.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.