RUSTSEC-2026-0262

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0262

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0262.json

JSON Data

https://api.test.osv.dev/v1/vulns/RUSTSEC-2026-0262

Published

2026-08-20T12:00:00Z

Modified

2026-08-21T06:30:39.072096673Z

Summary

`append-only-vec` 0.1.9 was removed from crates.io due to a malicious dependency

Details

A new version of the append-only-vec crate was published with a direct dependency on proc-macro1, which would execute a malicious build script.

The compromised version of this crate was published on 2026-08-20, and was removed approximately 107 minutes later.

The compromised crate version was used as part of a malware campaign targeted at users of arrayref, which was downloaded 2,285 times before being removed; see the arrayref advisory for more detail.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / append-only-vec

Package

Name: append-only-vec; View open source insights on deps.dev
Purl: pkg:cargo/append-only-vec

Affected ranges

Type: SEMVER
Events: Introduced

0.1.9-0

Ecosystem specific

{
    "affects": {
        "functions": [],
        "arch": [],
        "os": []
    },
    "affected_functions": null
}

Database specific

informational

null

cvss

null

source

"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0262.json"