npm/jsrsasign CVE-2026-4603: medium 5.9, EPSS 0.11%
jsrsasign: Division by Zero Allows Invalid JWK Modulus to Cause Deterministic Zero Output in RSA Operations
Action: Upgrade jsrsasign to 11.1.1 or later.
npm i jsrsasign@11.1.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 11.1.1 | - |
Fixed versions
| 11.1.1 |
Sources
- osv: GHSA-464q-cqxq-xhgr
- https://nvd.nist.gov/vuln/detail/CVE-2026-4603
- https://github.com/kjur/jsrsasign/pull/649
- https://github.com/kjur/jsrsasign/commit/dc41d49fac4297e7a737a3ef8ebd0aa9c49ef93f
- https://gist.github.com/Kr0emer/5366b7364c4fbf7e754bc377f321e9f3
- https://github.com/kjur/jsrsasign
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15371176
CVE-2026-4603 · published · modified · JSON