Rust advisories / cosmian_kyber
UnmaintainedRUSTSEC-2026-0287 · cosmian_kyber
RUSTSEC-2026-0287: cosmian_kyber is unmaintained
Short answerNot a bug report: cosmian_kyber is no longer maintained, so future security issues will not be fixed. Plan to move to a maintained alternative.
| Crate | cosmian_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-2026-0287"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i cosmian_kyber.
Details from the advisory
cosmian_kyber is a fork of Argyle-Software/kyber that has seen no maintainer activity. It inherits the fork parent's broken AVX2 constant-time code, and the open fix pull request (Cosmian/kyber#6) has gone unanswered.
Recommended alternatives:
References
- Package: crates.io/crates/cosmian_kyber
- Advisory: rustsec.org/advisories/RUSTSEC-2026-0287.html
- Web: github.com/Cosmian/kyber/pull/6
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 cosmian_kyber
Up next
Same cratecosmian_kyber: security historyEvery advisory for this crate, and whether it is safe to use today.Read it next →Did this answer your question?