Rust advisories / cpuid-bool
UnmaintainedRUSTSEC-2021-0064 · cpuid-bool
RUSTSEC-2021-0064: `cpuid-bool` has been renamed to `cpufeatures`
Short answerNot a bug report: cpuid-bool is no longer maintained, so future security issues will not be fixed. Plan to move to a maintained alternative.
| Crate | cpuid-bool |
|---|---|
| Type | Unmaintained |
| Affected versions | Every version. |
| Fixed in | not applicable (the crate is unmaintained) |
| Severity | not scored |
| Published | 2021-05-06 |
| Last changed | 2021-05-06 |
| 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-2021-0064"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i cpuid-bool.
Details from the advisory
Please use the cpufeatures` crate going forward:
<https://github.com/RustCrypto/utils/tree/master/cpufeatures>
There will be no further releases of cpuid-bool.
References
- Package: crates.io/crates/cpuid-bool
- Advisory: rustsec.org/advisories/RUSTSEC-2021-0064.html
- Web: github.com/RustCrypto/utils/pull/381
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
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