High severityNVD Advisory· Published Mar 23, 2026· Updated Mar 23, 2026
CVE-2026-4598
CVE-2026-4598
Description
Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jsrsasignnpm | < 11.1.1 | 11.1.1 |
Affected products
2- jsrsasign/jsrsasigndescription
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-8g7p-jf3g-gxcpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-4598ghsaADVISORY
- gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264ghsaWEB
- github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323ghsaWEB
- github.com/kjur/jsrsasign/pull/648ghsaWEB
- security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938ghsaWEB
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