HIGH 7.5
GHSA-8g7p-jf3g-gxcp
jsrsasign is vulnerable to DoS through Infinite Loop when processing zero or negative inputs
Quick fix
GHSA-8g7p-jf3g-gxcp — jsrsasign: upgrade to the fixed version with the command below.
npm install jsrsasign@11.1.1 Details
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)).
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-4598 [ADVISORY]
- https://github.com/kjur/jsrsasign/pull/648 [WEB]
- https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323 [WEB]
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938 [WEB]
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812263 [WEB]
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4598.json [WEB]
- https://github.com/kjur/jsrsasign [PACKAGE]
- https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264 [WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2450210 [WEB]
- https://access.redhat.com/security/cve/CVE-2026-4598 [WEB]
- https://access.redhat.com/errata/RHSA-2026:6720 [WEB]
- https://access.redhat.com/errata/RHSA-2026:6568 [WEB]
- https://access.redhat.com/errata/RHSA-2026:23361 [WEB]
- https://access.redhat.com/errata/RHSA-2026:22840 [WEB]
- https://access.redhat.com/errata/RHSA-2026:19410 [WEB]
- https://access.redhat.com/errata/RHSA-2026:19409 [WEB]
- https://access.redhat.com/errata/RHSA-2026:19375 [WEB]