---
id: CVE-2026-110638
title: >-
  doc-recog through 1.1.6 contains an OS command injection vulnerability that
  allows attackers to execute commands by supplying crafted document paths to
  recog() or tag()
summary: >-
  doc-recog through 1.1.6 contains an OS command injection vulnerability that
  allows attackers to execute commands by supplying crafted document paths to
  recog() or tag(). Attackers can embed $(...) or backtick command substitution
  in the …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T15:17:16.997'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110638'
references:
  - url: 'https://github.com/zepspaiva/doc-recog'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/zepspaiva/doc-recog/blob/96d31957fbc2a31f1d739e2d64e5c85a05f688ec/docdata.js#L69-L74
    label: disclosure@vulncheck.com
  - url: 'https://github.com/zepspaiva/doc-recog/pull/2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/doc-recog-through-1.1.6-os-command-injection-via-docdata-readpdf-file-path
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-14T15:36:14.014Z'
---

## Overview

doc-recog through 1.1.6 contains an OS command injection vulnerability that allows attackers to execute commands by supplying crafted document paths to recog() or tag(). Attackers can embed $(...) or backtick command substitution in the file path, which DocData._readPDF passes to a shell-based pdftotext exec call, running commands with Node.js process privileges.

## Remediation

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