---
id: CVE-2026-108554
title: >-
  PDFMathTranslate (pdf2zh) through 1.9.11 contains a server-side request
  forgery vulnerability that allows unauthenticated attackers to make the server
  fetch arbitrary URLs via the Link input
summary: >-
  PDFMathTranslate (pdf2zh) through 1.9.11 contains a server-side request
  forgery vulnerability that allows unauthenticated attackers to make the server
  fetch arbitrary URLs via the Link input. The translate_file handler passes
  user URLs t…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: PDFMathTranslate
product: PDFMathTranslate
affected:
  - PDFMathTranslate <= 1.9.11
published: '2026-10-10'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:18:44.867'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108554'
references:
  - url: 'https://github.com/PDFMathTranslate/PDFMathTranslate'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L149-L179
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/PDFMathTranslate/PDFMathTranslate/blob/0f0618d3303d064d97e7adb77557b21236c6cee0/pdf2zh/gui.py#L257-L269
    label: disclosure@vulncheck.com
  - url: 'https://github.com/PDFMathTranslate/PDFMathTranslate/issues/1188'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pdfmathtranslate-through-1.9.11-ssrf-via-gradio-web-gui-link-input
    label: disclosure@vulncheck.com
  - url: 'https://github.com/PDFMathTranslate/PDFMathTranslate/issues/1188'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00301
epssPercentile: 0.22686
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-14T02:22:12.673602Z'
ingestedAt: '2026-10-10T15:25:58.089Z'
---

## Overview

PDFMathTranslate (pdf2zh) through 1.9.11 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server fetch arbitrary URLs via the Link input. The translate_file handler passes user URLs to download_with_limit without scheme or address validation, letting attackers reach internal services and cloud metadata endpoints and retrieve returned PDFs.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.