CRITICAL

CVE-2016-4991

CVSS v3

9.8

CRITICAL

EPSS Score

1.8 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2016-4991 yet.

Full record on NVD

Description

Input passed to the Pdf() function is shell escaped and passed to child_process.exec() during PDF rendering. However, the shell escape does not properly encode all special characters, namely, semicolon and curly braces. This can be abused to achieve command execution. This problem affects nodepdf 1.3.0.

Technical details

Published: 2022-07-28

Frequently asked questions

What is CVE-2016-4991?

Is CVE-2016-4991 actively exploited?

Active exploitation of CVE-2016-4991 has not been confirmed. Its EPSS score was 1.8% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-4991?

CVE-2016-4991 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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