UnmaintainedRUSTSEC-2026-0289 · pqc_kyber
RUSTSEC-2026-0289: pqc_kyber is unmaintained
Short answerNot a bug report: pqc_kyber is no longer maintained, so future security issues will not be fixed. Plan to move to a maintained alternative.
| Crate | pqc_kyber |
|---|---|
| Type | Unmaintained |
| Affected versions | Every version. |
| Fixed in | not applicable (the crate is unmaintained) |
| Severity | not scored |
| Published | 2026-09-17 |
| Last changed | 2026-09-18 |
| Also known as | none |
What to do
- Look for a maintained fork or alternative crate.
- If you cannot move yet, acknowledge it in your audit config so CI stays green while you plan: add
"RUSTSEC-2026-0289"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i pqc_kyber.
Details from the advisory
The crate has had no releases since 0.7.1 (2023-08-23), and the upstream repository shows no maintainer activity. Open pull requests, including a fix for a chosen-ciphertext key-recovery flaw in the AVX2 backend (Argyle-Software/kyber#121), have gone unanswered.
Recommended alternatives:
References
- Package: crates.io/crates/pqc_kyber
- Advisory: rustsec.org/advisories/RUSTSEC-2026-0289.html
- Web: github.com/Argyle-Software/kyber/pull/121
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
Other advisories for pqc_kyber
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