CVE-2023-26104: Lite web server Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-8237-3q5g-99fv
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CVSS 7.5
CWE-400
Published
Advisory Summary

CVE-2023-26104 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Lite web server libraries in the npm ecosystem. The issue involves denial of service vulnerability in lite-web-server. Remediation is available in the latest vendor maintenance releases.

CVE-2023-26104 at a Glance

CVE Identifier CVE-2023-26104
GHSA Identifier GHSA-8237-3q5g-99fv
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Lite web server
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/A:H).

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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2023-26104

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

lite-web-server fixed: Latest secure release 
npm install lite-web-server@Latest secure release
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 lite-web-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-26104, inspect your project dependencies using npm:

npm ls lite-web-server

Analyze the terminal output to locate any version of Lite web server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls lite-web-server 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Lite web server, 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

All versions of the package lite-web-server are vulnerable to Denial of Service (DoS) when an attacker sends an HTTP request and includes control characters that the decodeURI() function is unable to parse.

CVE-2023-26104 Affected Lite web server Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
lite-web-server
npm/lite-web-server
npm
≤ 1.2.2

References

NVD — CVE-2023-26104 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26104
Lite web server Source Repository REPOSITORY
https://gist.github.com/lirantal/637520812da06fffb91dd86d02ff6bde
Lite web server Source Repository REPOSITORY
https://github.com/chasyumen/lite-web-server
Lite web server Source Repository REPOSITORY
https://github.com/chasyumen/lite-web-server/blob/main/src/WebServer.js#23L274
Lite web server Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-LITEWEBSERVER-3153703

Frequently Asked Questions

What is CVE-2023-26104?
CVE-2023-26104 is a security vulnerability in Lite web server involving Denial of Service vulnerability in lite-web-server under CWE-400: Uncontrolled Resource Consumption.
Which Lite web server versions are affected?
Affected versions include releases prior to current release patches across affected packages: lite-web-server.
What version fixes CVE-2023-26104?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is lite-web-server affected?
Yes, lite-web-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-26104?
CVE-2023-26104 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2023-26104?
CVE-2023-26104 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2023-26104?
Run the dependency tree command: 'npm ls lite-web-server'. 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-8237-3q5g-99fv",
  "modified" : "2023-02-27T14:56:32Z",
  "published" : "2023-02-25T06:30:21Z",
  "aliases" : [ "CVE-2023-26104" ],
  "summary" : "Denial of Service vulnerability in lite-web-server",
  "details" : "All versions of the package lite-web-server are vulnerable to Denial of Service (DoS) when an attacker sends an HTTP request and includes control characters that the decodeURI() function is unable to parse.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "lite-web-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-26104"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/lirantal/637520812da06fffb91dd86d02ff6bde"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/chasyumen/lite-web-server"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chasyumen/lite-web-server/blob/main/src/WebServer.js#23L274"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-LITEWEBSERVER-3153703"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-02-27T14:56:32Z",
    "nvd_published_at" : "2023-02-25T05:15:00Z"
  }
}