CVE-2026-71851— Brix crypto-js 加密问题漏洞

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

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. This generator was introduced in version 3.1.2-4 and remained present in nearly every 3.x release. Nominal requests for 128 or 256 bits of entropy through this function produce effective search spaces of approximately 2 to the 39th and 2 to the 47th possibilities, small enough to enumerate on commodity hardware. Downstream wallet applications that used CryptoJS.lib.WordArray.random() as the entropy source for BIP39 recovery phrases are affected, and an attacker who enumerates the reduced output space can recover the resulting private keys and control the associated funds. This issue is fixed in version 4.0.0.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

信息熵不充分

Brix crypto-js 加密问题漏洞

Brix crypto-js是Brix组织开源的一款JavaScript加密标准库。 Brix crypto-js 4.0.0之前版本存在加密问题漏洞，该漏洞源于CryptoJS.lib.WordArray.random()使用自定义的Multiply-With-Carry伪随机数生成器并以Math.random()作为种子，而非加密安全源，导致生成的熵不足，可能使攻击者枚举缩减的输出空间，恢复私钥并控制相关资金。

N/A

N/A