Technology · npm
jsrsasign (npm) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 14 vulnerabilities in jsrsasign (npm): 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-4603, was published on 23 March 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 1
- Exploited in the wild
- 0
About jsrsasign (npm)
A JavaScript library for RSA, ECDSA, and DSA digital signatures, certificates, and ASN.1 structures.
Latest jsrsasign (npm) vulnerabilities
- CVE-2026-4603: jsrsasign division by zero in RSA public key parsingmediumCVSS 5.9EPSS 0.1%
- CVE-2026-4602: jsrsasign incorrect numeric conversion in BigInteger modPowhighCVSS 7.5EPSS 0.9%
- CVE-2026-4601: jsrsasign private key recovery via missing DSA check in signWithMessageHashhighCVSS 8.7EPSS 0.5%
- CVE-2026-4600: kjur jsrsasign signature forgery via DSA domain parameter validationhighCVSS 7.4EPSS 0.3%
- CVE-2026-4599: jsrsasign private key recovery via biased DSA nonce generationcriticalCVSS 9.1EPSS 0.8%
- CVE-2026-4598: jsrsasign infinite loop in BigInteger.modInversehighCVSS 7.5EPSS 1.0%
- CVE-2024-21484: jsrsasign RSA PKCS#1.5 and RSAOAEP Marvin attacklowCVSS 3.1EPSS 1.0%
- CVE-2022-25898: kjur jsrsasign improper signature verification in JWS and JWTlowCVSS 3.1
- jsrsasign RSA signature verification bypassinfo
- CVE-2021-30246: kjur jsrsasign RSA signature validation bypass in PKCS#1 v1.5 paddinglowCVSS 3.1
- jsrsasign ECDSA timing attack in signature generationlowCVSS 3.1
- CVE-2020-14966: jsrsasign ECDSA signature validation ASN.1 encoding bypasslowCVSS 3.1EPSS 1.1%
- CVE-2020-14967: jsrsasign RSA PKCS#1 decryption bypass with prepended zeroslowCVSS 3.1EPSS 2.3%
- CVE-2020-14968: jsrsasign RSA-PSS signature validation bypass via prepended zeroslowCVSS 3.1EPSS 2.9%
Most severe jsrsasign (npm) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-4599: jsrsasign private key recovery via biased DSA nonce generationcriticalCVSS 9.1EPSS 0.8%
- CVE-2026-4601: jsrsasign private key recovery via missing DSA check in signWithMessageHashhighCVSS 8.7EPSS 0.5%
- CVE-2026-4598: jsrsasign infinite loop in BigInteger.modInversehighCVSS 7.5EPSS 1.0%
- CVE-2026-4602: jsrsasign incorrect numeric conversion in BigInteger modPowhighCVSS 7.5EPSS 0.9%
- CVE-2026-4600: kjur jsrsasign signature forgery via DSA domain parameter validationhighCVSS 7.4EPSS 0.3%
- CVE-2026-4603: jsrsasign division by zero in RSA public key parsingmediumCVSS 5.9EPSS 0.1%
- CVE-2020-14968: jsrsasign RSA-PSS signature validation bypass via prepended zeroslowCVSS 3.1EPSS 2.9%
- CVE-2020-14967: jsrsasign RSA PKCS#1 decryption bypass with prepended zeroslowCVSS 3.1EPSS 2.3%
- CVE-2020-14966: jsrsasign ECDSA signature validation ASN.1 encoding bypasslowCVSS 3.1EPSS 1.1%
- CVE-2024-21484: jsrsasign RSA PKCS#1.5 and RSAOAEP Marvin attacklowCVSS 3.1EPSS 1.0%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/jsrsasign.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "jsrsasign (npm) vulnerabilities", https://junglewise.ai/threats/technologies/jsrsasign, 27 September 2026.