CVE-2026-2739

MEDIUM

5.3

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.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/20/2026

Last Modified2/20/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-835

References

https://gist.github.com/Kr0emer/02370d18328c28b5dd7f9ac880d22a91(report@snyk.io)

https://github.com/indutny/bn.js/commit/33df26b5771e824f303a79ec6407409376baa64b(report@snyk.io)

https://github.com/indutny/bn.js/issues/186(report@snyk.io)

https://github.com/indutny/bn.js/issues/316(report@snyk.io)

https://github.com/indutny/bn.js/pull/317(report@snyk.io)

https://security.snyk.io/vuln/SNYK-JS-BNJS-15274301(report@snyk.io)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.