atob 2.0.3 and earlier allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below.
Priority MEDIUM 43CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
atob 2.0.3 and earlier allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below.
Why it matters now
EPSS 0.02127 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed atob (npm): 2.1.0
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 |
|---|---|---|---|---|---|
| HackerOne | atob node module | up to 2.0.3 | — | No fix listed | CNA |
| — | atob (npm) | before 2.1.0 | 2.1.0 | Patch available | GHSA-8w4h-3cm3-2pm2 |
- atob node module VendorHackerOne Affected up to 2.0.3 Fixed in — No fix listed CNA
- atob (npm) Vendor— Affected before 2.1.0 Fixed in 2.1.0 Patch available GHSA-8w4h-3cm3-2pm2
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:atob_project:atob:*:*:*:*:*:node.js:*:* | up to 2.0.3 | Vulnerable | Atob Project |
- cpe:2.3:a:atob_project:atob:*:*:*:*:*:node.js:*:* Versions up to 2.0.3 Vulnerable ·Atob Project
Remediation
- Fix · GHSA-8w4h-3cm3-2pm2 atob (npm) Fixed in 2.1.0 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-3745
- 2026-10-03 Alias added: GHSA-8w4h-3cm3-2pm2
References
Exploit 1
Advisory 2
Sources
- CVE-2018-3745 · CVE Program
- CVE-2018-3745 · NVD
- FIRST EPSS
- GHSA-8w4h-3cm3-2pm2 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-3745 · Red Hat security data · CC BY 4.0
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