Description
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.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | jsrsasign | >= 7.0.0, < 11.1.1 |
| n/a | org.webjars.npm:jsrsasign | >= 8.0.12, < * |
| Red Hat | Migration Toolkit for Virtualization 2.1 | — |
| Red Hat | Migration Toolkit for Virtualization 2.9 | — |
| Red Hat | Red Hat Quay 3.10 | — |
| Red Hat | Red Hat Quay 3.12 | — |
| Red Hat | Red Hat Quay 3.15 | — |
| Red Hat | Red Hat Quay 3.16 | — |
| Red Hat | Red Hat Quay 3.9 | — |
References
- https://gist.github.com/Kr0emer/081681818b51605c91945126d74b4f20Exploit, Mitigation, Third Party Advisory
- https://github.com/kjur/jsrsasign/commit/ee4b013478366cb16cea9a4bdfb218b6077f83b1Patch
- https://github.com/kjur/jsrsasign/pull/647Issue Tracking
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812264
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370939Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:19375
- https://access.redhat.com/errata/RHSA-2026:19409
- https://access.redhat.com/errata/RHSA-2026:19410
- https://access.redhat.com/errata/RHSA-2026:6568
- https://access.redhat.com/errata/RHSA-2026:6720
- https://access.redhat.com/errata/RHSA-2026:6912
- https://access.redhat.com/errata/RHSA-2026:6926
- https://access.redhat.com/security/cve/CVE-2026-4599
- https://bugzilla.redhat.com/show_bug.cgi?id=2450207
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4599.json
Timeline
- Published
- Mar 23, 2026
- Last modified
- Sep 10, 2026
- NVD status
- Modified