CVE-2026-26832: Node tesseract ocr Node-tesseract-ocr Is Vulnerable To OS Vulnerability

CRITICAL
Advisory Identifier: GHSA-8j44-735h-w4w2
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CVSS 9.8
CWE-78
Published
Advisory Summary

CVE-2026-26832 is a CRITICAL (CVSS 9.8) node-tesseract-ocr is vulnerable to os vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Node tesseract ocr libraries in the npm ecosystem. The issue involves node-tesseract-ocr is vulnerable to os command injection through unsanitized recognize() function parameter. Remediation is available in the latest vendor maintenance releases.

CVE-2026-26832 at a Glance

CVE Identifier CVE-2026-26832
GHSA Identifier GHSA-8j44-735h-w4w2
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Node tesseract ocr
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2026-26832

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

node-tesseract-ocr fixed: Latest secure release 
npm install node-tesseract-ocr@Latest secure release
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 node-tesseract-ocr

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-26832, inspect your project dependencies using npm:

npm ls node-tesseract-ocr

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

Note: The npm ls node-tesseract-ocr 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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In Node tesseract ocr, 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

node-tesseract-ocr is an npm package that provides a Node.js wrapper for Tesseract OCR. In all versions through 2.2.1, the recognize() function in src/index.js is vulnerable to OS Command Injection. The file path parameter is concatenated into a shell command string and passed to child_process.exec() without proper sanitization

CVE-2026-26832 Affected Node tesseract ocr Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
node-tesseract-ocr
npm/node-tesseract-ocr
npm
≤ 2.2.1

References

NVD — CVE-2026-26832 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26832
Node tesseract ocr Source Repository REPOSITORY
https://github.com/zapolnoch/node-tesseract-ocr
Node tesseract ocr Source Repository REPOSITORY
https://github.com/zapolnoch/node-tesseract-ocr/blob/master/src/index.js
Node tesseract ocr Source Repository REPOSITORY
https://github.com/zebbernCVE/CVE-2026-26832

Frequently Asked Questions

What is CVE-2026-26832?
CVE-2026-26832 is a security vulnerability in Node tesseract ocr involving node-tesseract-ocr is vulnerable to OS Command Injection through unsanitized recognize() function parameter under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Node tesseract ocr versions are affected?
Affected versions include releases prior to current release patches across affected packages: node-tesseract-ocr.
What version fixes CVE-2026-26832?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is node-tesseract-ocr affected?
Yes, node-tesseract-ocr is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-26832?
CVE-2026-26832 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-26832?
CVE-2026-26832 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2026-26832?
Run the dependency tree command: 'npm ls node-tesseract-ocr'. 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-8j44-735h-w4w2",
  "modified" : "2026-03-27T19:38:38Z",
  "published" : "2026-03-25T18:31:47Z",
  "aliases" : [ "CVE-2026-26832" ],
  "summary" : "node-tesseract-ocr is vulnerable to OS Command Injection through unsanitized recognize() function parameter",
  "details" : "node-tesseract-ocr is an npm package that provides a Node.js wrapper for Tesseract OCR. In all versions through 2.2.1, the recognize() function in src/index.js is vulnerable to OS Command Injection. The file path parameter is concatenated into a shell command string and passed to child_process.exec() without proper sanitization",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "node-tesseract-ocr"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-26832"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zapolnoch/node-tesseract-ocr"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zapolnoch/node-tesseract-ocr/blob/master/src/index.js"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zebbernCVE/CVE-2026-26832"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-27T19:38:38Z",
    "nvd_published_at" : "2026-03-25T16:16:21Z"
  }
}