Rust advisories / bigint
Unmaintained CriticalRUSTSEC-2020-0025 · bigint
RUSTSEC-2020-0025: bigint is unmaintained, use uint instead
Short answerNot a bug report: bigint is no longer maintained, so future security issues will not be fixed. The advisory points to uint as the replacement.
| Crate | bigint |
|---|---|
| Type | Unmaintained |
| Affected versions | Every version. |
| Fixed in | not applicable (the crate is unmaintained) |
| Severity | Critical, CVSS 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2020-05-07 |
| Last changed | 2023-11-08 |
| Also known as | CVE-2020-35880, GHSA-wgx2-6432-j3fw |
What to do
- Move to uint.
- If you cannot move yet, acknowledge it in your audit config so CI stays green while you plan: add
"RUSTSEC-2020-0025"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i bigint.
Details from the advisory
The bigint crate is not maintained any more and contains several known bugs (including a soundness bug); use uint instead.
References
- Package: crates.io/crates/bigint
- Advisory: rustsec.org/advisories/RUSTSEC-2020-0025.html
- Web: github.com/paritytech/bigint/commit/7e71521a61b009afc94c91135353102658550d42
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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