crypto-js: Insufficient Entropy in Cryptographic Secret Generation via Vulnerable CryptoJS Dependency Chain

Summary CryptoJS.lib.WordArray.random in affected versions is not a cryptographically secure random number generator. Nominal requests for 128 or 256 bits of entropy produce effective search spaces of approximately 2^39 and 2^47 possibilities — small enough to enumerate on commodity hardware...

CVE-2026-71851

The CVE-2026-71851 entry describes a vulnerability in crypto-js prior to 4.0.0 where CryptoJS.lib.WordArray.random() uses a non-cryptographically secure PRNG seeded from Math.random(), yielding only 2^39–2^47 entropy. This affects downstream wallets using that entropy for BIP39 recovery phrases, ...

CVE-2026-71851

crypto-js is a JavaScript library of crypto standards. Versions of crypto-js prior to 4.0.0 generate randomness in CryptoJS.lib.WordArray.random using a custom variation of the Multiply-With-Carry pseudorandom number generator, seeded from Math.random, instead of a cryptographically secure source...