CVE-2026-4599
CRITICAL9.1EPSS 0.06%jsrsasign: Incomplete Comparison Allows DSA Private Key Recovery via Biased Nonce Generation
發布日:2026/3/23修改日:2026/3/30
描述
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.
受影響套件(1)
- npm/jsrsasign>= 7.0.0, < 11.1.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-4599
- PATCHhttps://github.com/kjur/jsrsasign
- WEBhttps://gist.github.com/Kr0emer/081681818b51605c91945126d74b4f20
- WEBhttps://github.com/kjur/jsrsasign/commit/ee4b013478366cb16cea9a4bdfb218b6077f83b1
- WEBhttps://github.com/kjur/jsrsasign/pull/647
- WEBhttps://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370939