CVE-2026-46350

Summary

The dcmjs library's DecimalString and IntegerString parsers incorrectly handle malformed DICOM numeric fields by passing unvalidated strings to JavaScript's Number constructor, allowing scientific notation overflow or sign-only strings to produce Infinity or NaN values that can corrupt downstream medical imaging calculations.

Exploitability

Remote exploitation is trivial for attackers who can inject maliciously crafted DS or IS DICOM values (e.g., via networked DICOM services or file uploads) without authentication or user interaction.

Blast radius

Affected medical imaging systems may produce incorrect spatial geometry, dose calculations, or frame counts, potentially leading to misdiagnosis, unsafe radiation delivery, or processing failures in radiotherapy or diagnostic workflows.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade dcmjs to version 0.52.0 or later, which fixes the permissive parsing and adds proper DICOM value-representation validation.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.