Rust advisories / twoway
UnmaintainedRUSTSEC-2021-0146 · twoway
RUSTSEC-2021-0146: Crate `twoway` deprecated by the author
Short answerNot a bug report: twoway is no longer maintained, so future security issues will not be fixed. Plan to move to a maintained alternative.
| Crate | twoway |
|---|---|
| Type | Unmaintained |
| Affected versions | Every version. |
| Fixed in | not applicable (the crate is unmaintained) |
| Severity | not scored |
| Published | 2021-05-20 |
| Last changed | 2023-02-09 |
| 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-2021-0146"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i twoway.
Details from the advisory
The commit e99b3c7 releasing version 0.2.2 explicitly deprecates twoway in favour of memchr crate.
References
- Package: crates.io/crates/twoway
- Advisory: rustsec.org/advisories/RUSTSEC-2021-0146.html
- Web: github.com/bluss/twoway
- Web: github.com/bluss/twoway/commit/e99b3c718df1117ad7f54c33f6540c8f46cc17dd
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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