---
id: "CVE-2026-115729"
kind: "vulnerability"
aliases: ["CVE-2026-115729"]
title: "pdfme: SSRF bypass lets requests reach internal and cloud metadata"
severity: "high"
cvss: 8.9
epss: 0.00442
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["cloud", "node.js", "package", "pdfme", "self-hosted"]
not_affected_if: ["5.5.10-free-installs", "basepdf-not-user-supplied"]
published_at: "2026-10-23T13:17:08+00:00"
first_seen_at: "2026-10-23T21:57:33+00:00"
updated_at: "2026-10-25T12:38:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115729", "first_seen_at": "2026-10-23T21:57:33+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115729", "first_seen_at": "2026-10-25T12:38:50+00:00"}]
---

# pdfme: SSRF bypass lets requests reach internal and cloud metadata

The @pdfme/common package fetches a PDF base URL supplied by the caller, and its denylist can be bypassed with IPv4-mapped IPv6, [::], NAT64 or localhost alias hostnames. An attacker can read loopback, internal network and cloud metadata responses through the generated documents.

_Summary, check and fix written by a model from the sources; labelled as such._

## Fix

Upgrade @pdfme/common to 6.2.6 or later.

## Timeline

- 2026-10-23T21:57:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115729
- 2026-10-25T12:38:50+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115729

## From the sources

@pdfme/common from 5.5.10 before 6.2.6 contains a server-side request forgery vulnerability that allows attackers to bypass the isUrlSafeToFetch denylist in getB64BasePdf. Attackers can supply basePdf URLs using IPv4-mapped IPv6, [::], NAT64 or localhost alias hostnames to read loopback, internal or cloud metadata responses through generated documents.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_