VULNERABILITY INTELLIGENCE

CVE-2026-27394

CVSS score7.1 HIGH

EPSS probability0.53%

CISA KEVNot currently listed

Published2026-10-29

Last modified2026-10-30

Description

This affects versions of the package bn.js before 5.2.3. Calling maskn(0) on any BN instance corrupts the internal state, causing toString(), divmod(), and other methods to enter an infinite loop, hanging the process indefinitely.