PT-2026-20998
CVE-2026-2739
·
Published
2026-02-20
·
Updated
2026-09-18
Description by
CVSS 4.0
5.5
MediumMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
bn.js versions prior to 5.2.3
Description
The bn.js package is susceptible to a state corruption issue. Calling the
maskn(0) function on any BN instance corrupts the internal state. This corruption causes methods like toString(), divmod(), and others to enter an infinite loop, resulting in a process hang.Recommendations
Update bn.js to version 5.2.3 or later.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
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