npm
CVE-2016-3956
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 3.21%. |
| Exploit ScenarioDerived | A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
The CLI in npm before 2.15.1 and 3.x before 3.8.3, as used in Node.js 0.10 before 0.10.44, 0.12 before 0.12.13, 4 before 4.4.2, and 5 before 5.10.0, includes bearer tokens with arbitrary requests,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. The CLI in npm before 2.15.1 and 3.x before 3.8.3, as used in Node.js 0.10 before 0.10.44, 0.12 before 0.12.13, 4 before 4.4.2, and 5 before 5.10.0, includes bearer tokens with arbitrary requests, which allows remote HTTP servers to obtain sensitive information by reading Authorization headers. Affected products include: Ibm Sdk, Nodejs Node.Js, Npmjs Npm. Version information: before 2.15.1.
Know when npm gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
The CLI in npm before 2.15.1 and 3.x before 3.8.3, as used in Node.js 0.10 before 0.10.44, 0.12 before 0.12.13, 4 before 4.4.2, and 5 before 5.10.0, includes bearer tokens with arbitrary requests, which allows remote HTTP servers to obtain sensitive information by reading Authorization headers.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)CVE.org
The npm ci command in npm 7.x and 8.x through 8.1.3 proceeds with an installation even if dependency information in pack
DNS rebinding against the local Streamable HTTP MCP listener in @zereight/mcp-gitlab before 2.1.30 lets a malicious web
Archive extraction in the Node.js decompress package allows a crafted archive containing chained symlink entries to reso
The legacy DOC renderer in File Viewer emits document-controlled hyperlink targets into generated HTML after character e
Untrusted git configuration includes reachable through simple-git before 4.0.0 let an attacker execute arbitrary command
A remote, unauthenticated denial-of-service condition in the NestJS (Nest) microservices framework lets an attacker cras
Deeply nested brace patterns cause unbounded recursion in the npm brace-expansion library, exhausting the native stack a
Stack exhaustion in the npm library brace-expansion (all versions prior to 1.1.19, 2.1.5, 3.0.7, and 5.0.10) lets a craf
The JavaScript library ip-address (npm) fails to treat the NAT64 local-use prefix 64:ff9b:1::/48 as private, so applicat
Cross-family subnet comparisons in the ip-address npm library (all versions before 10.7.1) can cause isInSubnet and isHo
Denial of service in the ip-address JavaScript/npm library (all versions prior to 10.7.1) lets remote attackers stall or
A credential-isolation flaw in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker who controls or can pred
Exploit-DB