Vulnerability HighRUSTSEC-2021-0101 · pleaser
RUSTSEC-2021-0101: Permissions bypass in pleaser
Short answerA security vulnerability in the pleaser crate: Permissions bypass in pleaser. High severity (CVSS 7.8). Fixed in 0.4.0: update to a fixed version.
| Crate | pleaser |
|---|---|
| Type | Vulnerability (privilege-escalation) |
| Affected versions | Before 0.4.0. |
| Fixed in | 0.4.0 |
| Severity | High, CVSS 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published | 2021-05-27 |
| Last changed | 2023-11-08 |
| Also known as | CVE-2021-31155, GHSA-vc5p-j8vw-mc6x |
What to do
- See which version you have:
cargo tree -i pleaser(it also shows which of your dependencies pulls it in). - Update within your version requirement:
cargo update -p pleaser. If the fix is a newer major or minor than your requirement allows, raise it in Cargo.toml (for examplepleaser = "0.4.0") or update the dependency that pulls it in. - Check again with
cargo audit, or paste your Cargo.lock into our Cargo.toml checker.
Details from the advisory
Failure to normalize the umask in pleaser before 0.4 allows a local attacker to gain full root privileges if they are allowed to execute at least one command.
References
- Package: crates.io/crates/pleaser
- Advisory: rustsec.org/advisories/RUSTSEC-2021-0101.html
- Web: nvd.nist.gov/vuln/detail/CVE-2021-31155
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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