CVE-2026-46350 · GHSA-px68-xx5g-48q5

dcmjs: DS/IS VALUE REPRESENTATION INPUT VALIDATION BYPASS

Risk score: 65/100
CVSS: 9.1 v3.1
Published: 27 Oct 2026

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What to know

What it is: A vulnerability in dcmjs allows an attacker to bypass input validation, potentially causing incorrect calculations or disrupted processing. This could lead to incorrect display, geometry, or reconstruction of medical images.
Affected: {'products': ['dcmjs'], 'packages': ['dcmjs'], 'versions': ['< 0.52.0']}
Fix: Upgrade to version 0.52.0 or later
Exploitation: No known exploitation

Why it is Amber

CVSS 9.1 critical
Remotely exploitable without logging in
On your watchlist: npm

Affected packages

Package	Ecosystem	Vulnerable	Fixed in
dcmjs	npm	< 0.52.0	0.52.0

References

Original description

dcmjs is a JavaScript implementation of DICOM manipulation. Prior to 0.52.0, the DecimalString and IntegerString implementations in src/ValueRepresentation.js sanitize text with a permissive regular expression and pass the result to JavaScript's Number constructor without validating finiteness or the DICOM value-representation rules. Scientific notation overflow in a DS or IS field can produce positive or negative Infinity, while stripping alphabetic characters from signed infinity text can leave a sign-only string that converts to NaN. IntegerString also accepts exponent notation and values outside the DICOM signed 32-bit IS range. Applications that trust these parsed values can propagate invalid numbers into spatial geometry, display windowing, dose scaling, frame counts, rescaling, or volume reconstruction, causing incorrect calculations or disrupted processing. This issue is fixed in version 0.52.0.

Last activity 5 Nov 2026. Patch Forecast updates every hour.