Vulnerabilities in pkg:npm/pdfmake

PACKAGE
Advisory Identifier: GHSA-wp52-r2fp-4vmr
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Advisory Summary

CVE-2026-26801 is a HIGH (CVSS 7.5) pdfmake is vulnerable to server-side vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Pdfmake libraries in the npm ecosystem. The issue involves pdfmake is vulnerable to server-side request forgery (ssrf). Remediation is available by upgrading affected packages to version 0.3.6.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/pdfmake

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/pdfmake. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-wp52-r2fp-4vmr CVE-2026-26801 HIGH pdfmake is vulnerable to server-side request forgery (SSRF)
GHSA-rj3r-r7hh-jxfq CVE-2025-11362 HIGH pdfmake is vulnerable to Throttling via repeatedly redirecting URL in file embedding

CVE-2026-26801 at a Glance

CVE Identifier CVE-2026-26801
GHSA Identifier GHSA-wp52-r2fp-4vmr
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Pdfmake
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:H/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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-26801

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

pdfmake fixed: 0.3.6 
npm install pdfmake@0.3.6
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 pdfmake

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-26801, inspect your project dependencies using npm:

npm ls pdfmake

Analyze the terminal output to locate any version of Pdfmake in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.3.6), your application is affected.

Note: The npm ls pdfmake 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Pdfmake, 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

Server-Side Request Forgery (SSRF) vulnerability in pdfmake versions 0.3.0-beta.2 through 0.3.5 allows a remote attacker to obtain sensitive information via the src/URLResolver.js component. The fix was released in version 0.3.6 which introduces the setUrlAccessPolicy() method allowing server operators to define URL access rules. A warning is now logged when pdfmake is used server-side without a policy configured.

CVE-2026-26801 Affected Pdfmake Versions

1 component(s)
Fixed Versions:
0.3.6
Product / Package Ecosystem Affected Versions Fixed Version
pdfmake
npm/pdfmake
npm
≥ 0.3.0-beta.2
< 0.3.6
0.3.6

References

NVD — CVE-2026-26801 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26801
Pdfmake Source Repository REPOSITORY
https://github.com/bpampuch/pdfmake/pull/2920
Pdfmake Source Repository REPOSITORY
https://github.com/bpampuch/pdfmake
Pdfmake Source Repository REPOSITORY
https://github.com/bpampuch/pdfmake/blob/master/src/URLResolver.js
Pdfmake Release RELEASE
https://github.com/bpampuch/pdfmake/releases/tag/0.3.6
mariopepe.github.io/cve-2026-26801-pdfm... WEB
https://mariopepe.github.io/cve-2026-26801-pdfmake-ssrf

Frequently Asked Questions

What is CVE-2026-26801?
CVE-2026-26801 is a security vulnerability in Pdfmake involving pdfmake is vulnerable to server-side request forgery (SSRF) under CWE-918: Server-Side Request Forgery (SSRF).
Which Pdfmake versions are affected?
Affected versions include releases prior to 0.3.6 across affected packages: pdfmake.
What version fixes CVE-2026-26801?
Upgrading to 0.3.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pdfmake affected?
Yes, pdfmake is affected in releases prior to 0.3.6. Upgrade your dependency to 0.3.6 or later.
What is the CVSS score of CVE-2026-26801?
CVE-2026-26801 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:H/I:N/A:N.
What CWE is associated with CVE-2026-26801?
CVE-2026-26801 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check npm dependencies for CVE-2026-26801?
Run the dependency tree command: 'npm ls pdfmake'. 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-wp52-r2fp-4vmr",
  "modified" : "2026-03-19T16:35:25Z",
  "published" : "2026-03-10T21:32:15Z",
  "aliases" : [ "CVE-2026-26801" ],
  "summary" : "pdfmake is vulnerable to server-side request forgery (SSRF)",
  "details" : "Server-Side Request Forgery (SSRF) vulnerability in pdfmake versions 0.3.0-beta.2 through 0.3.5 allows a remote attacker to obtain sensitive information via the src/URLResolver.js component. The fix was released in version 0.3.6 which introduces the setUrlAccessPolicy() method allowing server operators to define URL access rules. A warning is now logged when pdfmake is used server-side without a policy configured.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "pdfmake"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.3.0-beta.2"
      }, {
        "fixed" : "0.3.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-26801"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpampuch/pdfmake/pull/2920"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bpampuch/pdfmake"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpampuch/pdfmake/blob/master/src/URLResolver.js"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bpampuch/pdfmake/releases/tag/0.3.6"
  }, {
    "type" : "WEB",
    "url" : "https://mariopepe.github.io/cve-2026-26801-pdfmake-ssrf"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-11T21:12:09Z",
    "nvd_published_at" : "2026-03-10T19:17:17Z"
  }
}