RuboCop 0.48.1 and earlier does not use /tmp in safe way, allowing local users to exploit…
Priority LOW 16CWE-668Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
RuboCop 0.48.1 and earlier does not use /tmp in safe way, allowing local users to exploit this to tamper with cache files belonging to other users.
Why it matters now
EPSS 0.00409 35th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed rubocop (RubyGems): 0.49.0
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 |
| — | rubocop (RubyGems) | before 0.49.0 | 0.49.0 | Patch available | GHSA-wmjf-jpjj-9f3j |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- rubocop (RubyGems) Vendor— Affected before 0.49.0 Fixed in 0.49.0 Patch available GHSA-wmjf-jpjj-9f3j
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rubocop_project:rubocop:*:*:*:*:*:*:*:* | up to 0.48.1 | Vulnerable | Rubocop Project |
- cpe:2.3:a:rubocop_project:rubocop:*:*:*:*:*:*:*:* Versions up to 0.48.1 Vulnerable ·Rubocop Project
Remediation
- Fix · GHSA-wmjf-jpjj-9f3j rubocop (RubyGems) Fixed in 0.49.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-8418
- 2026-10-03 Alias added: GHSA-wmjf-jpjj-9f3j
References
Exploit 2
Sources
- CVE-2017-8418 · CVE Program
- CVE-2017-8418 · NVD
- FIRST EPSS
- GHSA-wmjf-jpjj-9f3j · GitHub Advisory Database · CC BY 4.0
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