CVE-2021-23353: Jspdf Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-57f3-gghm-9mhc
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CVSS 7.5
CWE-400
Published
Advisory Summary

CVE-2021-23353 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Jspdf libraries in the npm ecosystem. The issue involves jspdf vulnerable to regular expression denial of service (redos). Remediation is available by upgrading affected packages to version 2.3.1.

CVE-2021-23353 at a Glance

CVE Identifier CVE-2021-23353
GHSA Identifier GHSA-57f3-gghm-9mhc
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Jspdf
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-2021-23353

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

jspdf fixed: 2.3.1 
npm install jspdf@2.3.1
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 jspdf

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-23353, inspect your project dependencies using npm:

npm ls jspdf

Analyze the terminal output to locate any version of Jspdf in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.3.1), your application is affected.

Note: The npm ls jspdf 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 Jspdf, 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

This affects the package jspdf before 2.3.1. ReDoS is possible via the addImage function.

CVE-2021-23353 Affected Jspdf Versions

1 component(s)
Fixed Versions:
2.3.1
Product / Package Ecosystem Affected Versions Fixed Version
jspdf
npm/jspdf
npm
< 2.3.1
2.3.1

References

NVD — CVE-2021-23353 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23353
Jspdf Source Repository REPOSITORY
https://github.com/MrRio/jsPDF/pull/3091
Security Fix Commit FIX COMMIT
https://github.com/MrRio/jsPDF/commit/d8bb3b39efcd129994f7a3b01b632164144ec43e
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1083289
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1083287
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBMRRIO-1083288
snyk.io/vuln/snyk-java-orgw... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1083286
snyk.io/vuln/snyk-js-jspdf-... WEB
https://snyk.io/vuln/SNYK-JS-JSPDF-1073626

Frequently Asked Questions

What is CVE-2021-23353?
CVE-2021-23353 is a security vulnerability in Jspdf involving jspdf vulnerable to Regular Expression Denial of Service (ReDoS) under CWE-400: Uncontrolled Resource Consumption.
Which Jspdf versions are affected?
Affected versions include releases prior to 2.3.1 across affected packages: jspdf.
What version fixes CVE-2021-23353?
Upgrading to 2.3.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jspdf affected?
Yes, jspdf is affected in releases prior to 2.3.1. Upgrade your dependency to 2.3.1 or later.
What is the CVSS score of CVE-2021-23353?
CVE-2021-23353 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-2021-23353?
CVE-2021-23353 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-2021-23353?
Run the dependency tree command: 'npm ls jspdf'. 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-57f3-gghm-9mhc",
  "modified" : "2023-09-08T20:22:14Z",
  "published" : "2021-03-12T21:28:46Z",
  "aliases" : [ "CVE-2021-23353" ],
  "summary" : "jspdf vulnerable to Regular Expression Denial of Service (ReDoS)",
  "details" : "This affects the package jspdf before 2.3.1. ReDoS is possible via the addImage function.",
  "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" : "jspdf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.3.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-23353"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/MrRio/jsPDF/pull/3091"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/MrRio/jsPDF/commit/d8bb3b39efcd129994f7a3b01b632164144ec43e"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1083289"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1083287"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBMRRIO-1083288"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1083286"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-JSPDF-1073626"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-03-12T21:11:28Z",
    "nvd_published_at" : "2021-03-09T19:15:00Z"
  }
}