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CVE-2026-4599

jsrsasign · Vulnerability

CVSS 3.1 9.1 CRITICALCVSS 4.0 9.3 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-4599

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-4599

Published

jsrsasign

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "jsrsasign",
                    "versions": [
                        {
                            "version": "7.0.0",
                            "lessThan": "11.1.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "vendor": "n/a"
                }

org.webjars.npm:jsrsasign

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "org.webjars.npm:jsrsasign",
                    "versions": [
                        {
                            "version": "8.0.12",
                            "lessThan": "*",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "vendor": "n/a"
                }

Original source record · Cite this exact observation · Complete original publisher JSON