{"id":"RUSTSEC-2026-0164","aliases":[],"status":"published","title":"`pqcrypto` is unmaintained: upstream PQClean project being archived","description":"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)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2026-06-04T12:00:00Z","modified":"2026-06-04T15:00:04Z","affected":[{"source":"osv","ecosystem":"crates.io","package":"pqcrypto","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}]}],"references":[{"url":"https://crates.io/crates/pqcrypto","tags":["package"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0164.html","tags":["advisory"]},{"url":"https://github.com/rustpq/pqcrypto/issues/97","tags":["report"]}],"sources":{"osv":[{"id":"RUSTSEC-2026-0164","title":"`pqcrypto` is unmaintained: upstream PQClean project being archived","description":"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)","status":"published","published":"2026-06-04T12:00:00Z","modified":"2026-06-04T15:00:04.661278412Z","updated_at":"2026-11-02T15:53:40.430679Z"}]}}