CVE-2026-4599
Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing Factors via the getRandomBigIntegerZeroToMax and getRandomBigInt
critical entropy
Entropy / wallet impact
Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing Factors via the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions in src/crypto-1.1.js;
Description
Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing Factors via the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions in src/crypto-1.1.js; an attacker can recover the private key by exploiting the incorrect compareTo checks that accept out-of-range candidates and thus bias DSA nonces during signature generation.
CWE
Primary sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-4599 (nvd)
- https://gist.github.com/Kr0emer/081681818b51605c91945126d74b4f20 (nvd)
- https://github.com/kjur/jsrsasign/commit/ee4b013478366cb16cea9a4bdfb218b6077f83b1 (nvd)
- https://github.com/kjur/jsrsasign/pull/647 (nvd)
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812264 (nvd)
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370939 (nvd)
- https://access.redhat.com/errata/RHSA-2026:19375 (nvd)
- https://access.redhat.com/errata/RHSA-2026:19409 (nvd)
- https://access.redhat.com/errata/RHSA-2026:19410 (nvd)
- https://access.redhat.com/errata/RHSA-2026:6568 (nvd)
- https://access.redhat.com/errata/RHSA-2026:6720 (nvd)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4599 (mitre)