RUSTSEC-2026-0164
`pqcrypto` is unmaintained: upstream PQClean project being archived
Details
The `pqcrypto` crate and the entire `pqcrypto-*` ecosystem wrap C implementations from [PQClean](https://github.com/PQClean/PQClean). The PQClean project is being archived in or after July 2026 (see [PQClean/PQClean#604](https://github.com/PQClean/PQClean/issues/604)), after which no further security patches, algorithm updates, or bug fixes will be applied to the upstream implementations.
As a result, this crate and all dependent crates in the `pqcrypto-*` ecosystem will no longer receive updates. Users should migrate to actively maintained alternatives. Pure-Rust replacements are available for several algorithms:
- ML-KEM (FIPS 203): [`ml-kem`](https://crates.io/crates/ml-kem) - ML-DSA (FIPS 204): [`ml-dsa`](https://crates.io/crates/ml-dsa) - SLH-DSA (FIPS 205): [`slh-dsa`](https://crates.io/crates/slh-dsa) - FN-DSA (FIPS 206): [`fn-dsa`](https://crates.io/crates/fn-dsa)
Are you affected?
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Affected packages
0.0.0-0No fixed version published yet for pqcrypto. Pin to a known-safe version or switch to an alternative.