{"id":"RUSTSEC-2026-0164","summary":"`pqcrypto` is unmaintained: upstream PQClean project being archived","details":"The `pqcrypto` crate and the entire `pqcrypto-*` ecosystem wrap C implementations\nfrom [PQClean](https://github.com/PQClean/PQClean). The PQClean project is being\narchived in or after July 2026 (see [PQClean/PQClean#604](https://github.com/PQClean/PQClean/issues/604)),\nafter which no further security patches, algorithm updates, or bug fixes will\nbe applied to the upstream implementations.\n\nAs a result, this crate and all dependent crates in the `pqcrypto-*` ecosystem\nwill no longer receive updates. Users should migrate to actively maintained\nalternatives. Pure-Rust replacements are available for several algorithms:\n\n- ML-KEM (FIPS 203): [`ml-kem`](https://crates.io/crates/ml-kem)\n- ML-DSA (FIPS 204): [`ml-dsa`](https://crates.io/crates/ml-dsa)\n- SLH-DSA (FIPS 205): [`slh-dsa`](https://crates.io/crates/slh-dsa)\n- FN-DSA (FIPS 206): [`fn-dsa`](https://crates.io/crates/fn-dsa)","modified":"2026-06-04T15:00:04.661278412Z","published":"2026-06-04T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/pqcrypto"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0164.html"},{"type":"REPORT","url":"https://github.com/rustpq/pqcrypto/issues/97"}],"affected":[{"package":{"name":"pqcrypto","ecosystem":"crates.io","purl":"pkg:cargo/pqcrypto"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}],"ecosystem_specific":{"affected_functions":null,"affects":{"functions":[],"arch":[],"os":[]}},"database_specific":{"cvss":null,"informational":"unmaintained","source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0164.json","categories":[]}}],"schema_version":"1.7.5"}