CVE-2023-26108: @nestjs/core @nestjs/core Vulnerable To Information Exposure Vulnerability

MODERATE
Advisory Identifier: GHSA-4jpv-8r57-pv7j
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CVSS 5.3
CWE-200
Published
Advisory Summary

CVE-2023-26108 is a MODERATE (CVSS 5.3) @nestjs/core vulnerable to information exposure vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting @nestjs/core libraries in the npm ecosystem. The issue involves @nestjs/core vulnerable to information exposure via streamablefile pipe. Remediation is available by upgrading affected packages to version 9.0.5.

CVE-2023-26108 at a Glance

CVE Identifier CVE-2023-26108
GHSA Identifier GHSA-4jpv-8r57-pv7j
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product @nestjs/core
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-26108

To remediate this vulnerability, upgrade all affected @nestjs/core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@nestjs/core fixed: 9.0.5 
npm install @nestjs/core@9.0.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls @nestjs/core

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-26108, inspect your project dependencies using npm:

npm ls @nestjs/core

Analyze the terminal output to locate any version of @nestjs/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.0.5), your application is affected.

Note: The npm ls @nestjs/core command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In @nestjs/core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Versions of the package @nestjs/core before 9.0.5 are vulnerable to Information Exposure via the StreamableFile pipe. Exploiting this vulnerability is possible when the client cancels a request while it is streaming a StreamableFile, the stream wrapped by the StreamableFile will be kept open.

CVE-2023-26108 Affected @nestjs/core Versions

1 component(s)
Fixed Versions:
9.0.5
Product / Package Ecosystem Affected Versions Fixed Version
@nestjs/core
npm/@nestjs/core
npm
< 9.0.5
9.0.5

References

NVD — CVE-2023-26108 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26108
@nestjs/core Source Repository REPOSITORY
https://github.com/nestjs/nest/issues/9759
@nestjs/core Source Repository REPOSITORY
https://github.com/nestjs/nest/pull/9819
@nestjs/core Source Repository REPOSITORY
https://github.com/nestjs/nest/pull/9819/commits/f59cf5e81ca73bcdf1b5b36713550fd93918db41
@nestjs/core Source Repository REPOSITORY
https://github.com/nestjs/nest
@nestjs/core Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-NESTJSCORE-2869127

Frequently Asked Questions

What is CVE-2023-26108?
CVE-2023-26108 is a security vulnerability in @nestjs/core involving @nestjs/core vulnerable to Information Exposure via StreamableFile pipe under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which @nestjs/core versions are affected?
Affected versions include releases prior to 9.0.5 across affected packages: @nestjs/core.
What version fixes CVE-2023-26108?
Upgrading to 9.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @nestjs/core affected?
Yes, @nestjs/core is affected in releases prior to 9.0.5. Upgrade your dependency to 9.0.5 or later.
What is the CVSS score of CVE-2023-26108?
CVE-2023-26108 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2023-26108?
CVE-2023-26108 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check npm dependencies for CVE-2023-26108?
Run the dependency tree command: 'npm ls @nestjs/core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4jpv-8r57-pv7j",
  "modified" : "2023-03-13T15:29:39Z",
  "published" : "2023-03-06T06:30:18Z",
  "aliases" : [ "CVE-2023-26108" ],
  "summary" : "@nestjs/core vulnerable to Information Exposure via StreamableFile pipe",
  "details" : "Versions of the package @nestjs/core before 9.0.5 are vulnerable to Information Exposure via the StreamableFile pipe. Exploiting this vulnerability is possible when the client cancels a request while it is streaming a StreamableFile, the stream wrapped by the StreamableFile will be kept open.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@nestjs/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-26108"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nestjs/nest/issues/9759"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nestjs/nest/pull/9819"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nestjs/nest/pull/9819/commits/f59cf5e81ca73bcdf1b5b36713550fd93918db41"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nestjs/nest"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-NESTJSCORE-2869127"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-03-08T00:10:01Z",
    "nvd_published_at" : "2023-03-06T05:15:00Z"
  }
}