Vulnerability · Published Nov 5, 2026 · Assigned by GitHub_M
CVE-2026-46350dcmjs: DS/IS VALUE REPRESENTATION INPUT VALIDATION BYPASS
Critical 9.1
In plain English
A critical-severity improper input validation in dcmjs from dcmjs-org. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | dcmjs | 0.52.0 | GHSA-px68-xx5g-48q5 |
Affected products (as reported)
Weakness: CWE-20, CWE-1284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
- https://github.com/dcmjs-org/dcmjs/security/advisories/GHSA-px68-xx5g-48q5 x_refsource_CONFIRM
- https://github.com/dcmjs-org/dcmjs/pull/497 x_refsource_MISC
- https://github.com/dcmjs-org/dcmjs/commit/81e7e11cdefb56aa1a65bfe259648b865583ff88 x_refsource_MISC
- https://github.com/dcmjs-org/dcmjs/releases/tag/v0.52.0 x_refsource_MISC