Failure to normalize the umask in please before 0.4 allows a local attacker to gain full…
Priority LOW 34CWE-732Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-269.
Summary
Failure to normalize the umask in please before 0.4 allows a local attacker to gain full root privileges if they are allowed to execute at least one command.
Why it matters now
EPSS 0.00408 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed pleaser (crates.io): 0.4.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | pleaser (crates.io) | before 0.4.0 | 0.4.0 | Patch available | GHSA-vc5p-j8vw-mc6x |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- pleaser (crates.io) Vendor— Affected before 0.4.0 Fixed in 0.4.0 Patch available GHSA-vc5p-j8vw-mc6x
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:umask_project:umask:*:*:*:*:*:*:*:* | before 0.4 | Vulnerable | Umask Project |
- cpe:2.3:a:umask_project:umask:*:*:*:*:*:*:*:* Versions before 0.4 Vulnerable ·Umask Project
Remediation
- Fix · GHSA-vc5p-j8vw-mc6x pleaser (crates.io) Fixed in 0.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31155
- 2026-10-03 Alias added: GHSA-vc5p-j8vw-mc6x
References
Advisory 2
Sources
- CVE-2021-31155 · CVE Program
- CVE-2021-31155 · NVD
- FIRST EPSS
- GHSA-vc5p-j8vw-mc6x · GitHub Advisory Database · CC BY 4.0
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