CVE-2026-26830

CriticalPublic PoCRCE

Published: 25 March 2026

Published

25 March 2026

Modified

02 April 2026

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0087 75.5th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-26830 is a critical-severity Code Injection (CWE-94) vulnerability in Pdf-Image Project Pdf-Image. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 24.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Directly requires identification, reporting, and correction of the OS command injection flaw in the pdf-image npm package to eliminate the vulnerability.

SI-10 Information Input Validation good match

prevent

Mandates validation of user-controlled pdfFilePath inputs to block injection of arbitrary OS commands into shell executions via child_process.exec().

RA-5 Vulnerability Monitoring and Scanning partial match

detect

Enables vulnerability scanning to identify the presence of CVE-2026-26830 in npm dependencies like pdf-image for subsequent remediation.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.004 Unix Shell Execution

Adversaries may abuse Unix shell commands and scripts for execution.

attack.mitre.org →

Why these techniques?

CVE enables remote exploitation of public-facing Node.js applications (T1190) via command injection, directly facilitating arbitrary OS command execution through shell interpreter (T1059.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

pdf-image (npm package) through version 2.0.0 allows OS command injection via the pdfFilePath parameter. The constructGetInfoCommand and constructConvertCommandForPage functions use util.format() to interpolate user-controlled file paths into shell command strings that are executed via child_process.exec()

Deeper analysisAI

CVE-2026-26830 is an OS command injection vulnerability (CWE-94) in the pdf-image npm package through version 2.0.0. The issue resides in the constructGetInfoCommand and constructConvertCommandForPage functions, which use Node.js util.format() to interpolate user-controlled pdfFilePath parameters into shell command strings subsequently executed via child_process.exec(). It carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and was published on 2026-03-25T15:16:38.620.

Attackers can exploit this remotely over the network with low complexity, requiring no privileges, authentication, or user interaction. By supplying a malicious pdfFilePath, an unauthenticated remote attacker can inject arbitrary operating system commands, achieving high-impact confidentiality, integrity, and availability violations, including potential full server compromise.

Mitigation details are available in related advisories and resources, including the project repositories at https://github.com/mooz/node-pdf-image and https://github.com/zebbernCVE/CVE-2026-26830, as well as the npm package page at https://www.npmjs.com/package/pdf-image.