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CVE-2026-2739

CVE-2026-2739

CVSS 6.9 MEDIUMEPSS 0.5%CWE-835
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · bn.js

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References
https://gist.github.com/Kr0emer/02370d18328c28b5dd7f9ac880d22a91https://github.com/indutny/bn.js/commit/33df26b5771e824f303a79ec6407409376baa64bhttps://github.com/indutny/bn.js/issues/186https://github.com/indutny/bn.js/issues/316https://github.com/indutny/bn.js/pull/317https://security.snyk.io/vuln/SNYK-JS-BNJS-15274301