npm
CVE-2019-16775
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling UNIX symlink resolution
|
| Impact | CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAI
Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
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Technical ContextAI · show details
This vulnerability is classified under CWE-61. Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It is possible for packages to create symlinks to files outside of thenode_modules folder through the bin field upon installation. A properly constructed entry in the package.json bin field would allow a package publisher to create a symlink pointing to arbitrary files on a user's system when the package is installed. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option. Affected products include: Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Npmjs Npm, Opensuse Leap, Oracle Graalvm. Version information: prior to 6.13.3.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It is possible for packages to create symlinks to files outside of thenode_modules folder through the bin field upon installation. A properly constructed entry in the package.json bin field would allow a package publisher to create a symlink pointing to arbitrary files on a user's system when the package is installed. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.
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
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
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