Rust advisories / stderr
UnmaintainedRUSTSEC-2020-0109 · stderr
RUSTSEC-2020-0109: stderr is unmaintained; use eprintln instead
Short answerNot a bug report: stderr is no longer maintained, so future security issues will not be fixed. The advisory points to eprintln as the replacement.
| Crate | stderr |
|---|---|
| Type | Unmaintained |
| Affected versions | Every version. |
| Fixed in | not applicable (the crate is unmaintained) |
| Severity | not scored |
| Published | 2020-12-22 |
| Last changed | 2021-01-20 |
| Also known as | none |
What to do
- Move to eprintln.
- If you cannot move yet, acknowledge it in your audit config so CI stays green while you plan: add
"RUSTSEC-2020-0109"toignorein.cargo/audit.tomlordeny.toml, with a comment saying why. - Find who pulls it in:
cargo tree -i stderr.
Details from the advisory
The stderr crate is no longer maintained by its current owner.
The author recommends using the eprintln macro from the standard library as a replacement.
References
- Package: crates.io/crates/stderr
- Advisory: rustsec.org/advisories/RUSTSEC-2020-0109.html
- Report: github.com/biluohc/stderr/issues/5
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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