{"schema_version":1,"title":"jsrsasign (npm) vulnerabilities","summary":"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.","url":"https://junglewise.ai/threats/technologies/jsrsasign","json_url":"https://junglewise.ai/threats/technologies/jsrsasign.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/jsrsasign","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":4,"all_time":14,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":6},"latest":[{"cve":"CVE-2026-4603","cvss":5.9,"epss":0.0011,"slug":"cve-2026-4603-jsrsasign-division-by-zero-in-rsa-public-key-parsing","title":"jsrsasign division by zero in RSA public key parsing","severity":"medium","exploited":false,"published_at":"2026-03-23T06:16:22.233+00:00","url":"https://junglewise.ai/threats/cve-2026-4603-jsrsasign-division-by-zero-in-rsa-public-key-parsing"},{"cve":"CVE-2026-4602","cvss":7.5,"epss":0.0088,"slug":"cve-2026-4602-jsrsasign-incorrect-numeric-conversion-in-biginteger-modpow","title":"jsrsasign incorrect numeric conversion in BigInteger modPow","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:22.07+00:00","url":"https://junglewise.ai/threats/cve-2026-4602-jsrsasign-incorrect-numeric-conversion-in-biginteger-modpow"},{"cve":"CVE-2026-4601","cvss":8.7,"epss":0.0047,"slug":"cve-2026-4601-jsrsasign-private-key-recovery-via-missing-dsa-check-in","title":"jsrsasign private key recovery via missing DSA check in signWithMessageHash","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.893+00:00","url":"https://junglewise.ai/threats/cve-2026-4601-jsrsasign-private-key-recovery-via-missing-dsa-check-in"},{"cve":"CVE-2026-4600","cvss":7.4,"epss":0.0032,"slug":"cve-2026-4600-kjur-jsrsasign-signature-forgery-via-dsa-domain-parameter","title":"kjur jsrsasign signature forgery via DSA domain parameter validation","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.697+00:00","url":"https://junglewise.ai/threats/cve-2026-4600-kjur-jsrsasign-signature-forgery-via-dsa-domain-parameter"},{"cve":"CVE-2026-4599","cvss":9.1,"epss":0.0078,"slug":"cve-2026-4599-jsrsasign-private-key-recovery-via-biased-dsa-nonce-generation","title":"jsrsasign private key recovery via biased DSA nonce generation","severity":"critical","exploited":false,"published_at":"2026-03-23T06:16:21.513+00:00","url":"https://junglewise.ai/threats/cve-2026-4599-jsrsasign-private-key-recovery-via-biased-dsa-nonce-generation"},{"cve":"CVE-2026-4598","cvss":7.5,"epss":0.0096,"slug":"cve-2026-4598-jsrsasign-infinite-loop-in-biginteger-modinverse","title":"jsrsasign infinite loop in BigInteger.modInverse","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.3+00:00","url":"https://junglewise.ai/threats/cve-2026-4598-jsrsasign-infinite-loop-in-biginteger-modinverse"},{"cve":"CVE-2024-21484","cvss":3.1,"epss":0.0096,"slug":"cve-2024-21484-jsrsasign-rsa-pkcs-1-5-and-rsaoaep-marvin-attack","title":"jsrsasign RSA PKCS#1.5 and RSAOAEP Marvin attack","severity":"low","exploited":false,"published_at":"2024-01-19T15:06:07+00:00","url":"https://junglewise.ai/threats/cve-2024-21484-jsrsasign-rsa-pkcs-1-5-and-rsaoaep-marvin-attack"},{"cve":"CVE-2022-25898","cvss":3.1,"slug":"cve-2022-25898-kjur-jsrsasign-improper-signature-verification-in-jws-and-jwt","title":"kjur jsrsasign improper signature verification in JWS and JWT","severity":"low","exploited":false,"published_at":"2022-06-25T07:19:06+00:00","url":"https://junglewise.ai/threats/cve-2022-25898-kjur-jsrsasign-improper-signature-verification-in-jws-and-jwt"},{"slug":"jsrsasign-rsa-signature-verification-bypass-f4eed909","title":"jsrsasign RSA signature verification bypass","severity":"info","exploited":false,"published_at":"2022-02-09T22:41:19+00:00","url":"https://junglewise.ai/threats/jsrsasign-rsa-signature-verification-bypass-f4eed909"},{"cve":"CVE-2021-30246","cvss":3.1,"slug":"cve-2021-30246-kjur-jsrsasign-rsa-signature-validation-bypass-in-pkcs-1-v1-5","title":"kjur jsrsasign RSA signature validation bypass in PKCS#1 v1.5 padding","severity":"low","exploited":false,"published_at":"2021-04-16T19:52:35+00:00","url":"https://junglewise.ai/threats/cve-2021-30246-kjur-jsrsasign-rsa-signature-validation-bypass-in-pkcs-1-v1-5"},{"cvss":3.1,"slug":"jsrsasign-ecdsa-timing-attack-in-signature-generation-a79a9b07","title":"jsrsasign ECDSA timing attack in signature generation","severity":"low","exploited":false,"published_at":"2020-06-30T16:05:08+00:00","url":"https://junglewise.ai/threats/jsrsasign-ecdsa-timing-attack-in-signature-generation-a79a9b07"},{"cve":"CVE-2020-14966","cvss":3.1,"epss":0.0113,"slug":"cve-2020-14966-jsrsasign-ecdsa-signature-validation-asn-1-encoding-bypass","title":"jsrsasign ECDSA signature validation ASN.1 encoding bypass","severity":"low","exploited":false,"published_at":"2020-06-26T16:54:15+00:00","url":"https://junglewise.ai/threats/cve-2020-14966-jsrsasign-ecdsa-signature-validation-asn-1-encoding-bypass"},{"cve":"CVE-2020-14967","cvss":3.1,"epss":0.0227,"slug":"cve-2020-14967-jsrsasign-rsa-pkcs-1-decryption-bypass-with-prepended-zeros","title":"jsrsasign RSA PKCS#1 decryption bypass with prepended zeros","severity":"low","exploited":false,"published_at":"2020-06-26T16:27:08+00:00","url":"https://junglewise.ai/threats/cve-2020-14967-jsrsasign-rsa-pkcs-1-decryption-bypass-with-prepended-zeros"},{"cve":"CVE-2020-14968","cvss":3.1,"epss":0.0286,"slug":"cve-2020-14968-jsrsasign-rsa-pss-signature-validation-bypass-via-prepended-zeros","title":"jsrsasign RSA-PSS signature validation bypass via prepended zeros","severity":"low","exploited":false,"published_at":"2020-06-26T16:26:50+00:00","url":"https://junglewise.ai/threats/cve-2020-14968-jsrsasign-rsa-pss-signature-validation-bypass-via-prepended-zeros"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"flowise (npm)","slug":"flowise","vulnerabilities":156,"url":"https://junglewise.ai/threats/technologies/flowise"},{"name":"vm2 (npm)","slug":"vm2","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/vm2"},{"name":"@budibase/server (npm)","slug":"budibase-server","vulnerabilities":61,"url":"https://junglewise.ai/threats/technologies/budibase-server"},{"name":"directus (npm)","slug":"directus","vulnerabilities":60,"url":"https://junglewise.ai/threats/technologies/directus"},{"name":"nocodb (npm)","slug":"nocodb","vulnerabilities":55,"url":"https://junglewise.ai/threats/technologies/nocodb"},{"name":"hono (npm)","slug":"hono","vulnerabilities":54,"url":"https://junglewise.ai/threats/technologies/hono"},{"name":"parse-server (npm)","slug":"parse-server","vulnerabilities":42,"url":"https://junglewise.ai/threats/technologies/parse-server"},{"name":"dompurify (npm)","slug":"dompurify","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/dompurify"},{"name":"ghost (npm)","slug":"ghost","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/ghost"},{"name":"flowise-components (npm)","slug":"flowise-components","vulnerabilities":35,"url":"https://junglewise.ai/threats/technologies/flowise-components"},{"name":"astro (npm)","slug":"astro","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/astro"},{"name":"@anthropic-ai/claude-code (npm)","slug":"anthropic-ai-claude-code","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/anthropic-ai-claude-code"}],"technology":{"hub":true,"name":"jsrsasign (npm)","slug":"jsrsasign","vendor":{"name":"npm","slug":"npm","url":"https://junglewise.ai/threats/vendors/npm"},"aliases":[],"homepage":"https://kjur.github.io/jsrsasign/","repo_url":"https://github.com/kjur/jsrsasign","description":"A JavaScript library for RSA, ECDSA, and DSA digital signatures, certificates, and ASN.1 structures.","url":"https://junglewise.ai/threats/technologies/jsrsasign"},"most_severe":[{"cve":"CVE-2026-4599","cvss":9.1,"epss":0.0078,"slug":"cve-2026-4599-jsrsasign-private-key-recovery-via-biased-dsa-nonce-generation","title":"jsrsasign private key recovery via biased DSA nonce generation","severity":"critical","exploited":false,"published_at":"2026-03-23T06:16:21.513+00:00","url":"https://junglewise.ai/threats/cve-2026-4599-jsrsasign-private-key-recovery-via-biased-dsa-nonce-generation"},{"cve":"CVE-2026-4601","cvss":8.7,"epss":0.0047,"slug":"cve-2026-4601-jsrsasign-private-key-recovery-via-missing-dsa-check-in","title":"jsrsasign private key recovery via missing DSA check in signWithMessageHash","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.893+00:00","url":"https://junglewise.ai/threats/cve-2026-4601-jsrsasign-private-key-recovery-via-missing-dsa-check-in"},{"cve":"CVE-2026-4598","cvss":7.5,"epss":0.0096,"slug":"cve-2026-4598-jsrsasign-infinite-loop-in-biginteger-modinverse","title":"jsrsasign infinite loop in BigInteger.modInverse","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.3+00:00","url":"https://junglewise.ai/threats/cve-2026-4598-jsrsasign-infinite-loop-in-biginteger-modinverse"},{"cve":"CVE-2026-4602","cvss":7.5,"epss":0.0088,"slug":"cve-2026-4602-jsrsasign-incorrect-numeric-conversion-in-biginteger-modpow","title":"jsrsasign incorrect numeric conversion in BigInteger modPow","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:22.07+00:00","url":"https://junglewise.ai/threats/cve-2026-4602-jsrsasign-incorrect-numeric-conversion-in-biginteger-modpow"},{"cve":"CVE-2026-4600","cvss":7.4,"epss":0.0032,"slug":"cve-2026-4600-kjur-jsrsasign-signature-forgery-via-dsa-domain-parameter","title":"kjur jsrsasign signature forgery via DSA domain parameter validation","severity":"high","exploited":false,"published_at":"2026-03-23T06:16:21.697+00:00","url":"https://junglewise.ai/threats/cve-2026-4600-kjur-jsrsasign-signature-forgery-via-dsa-domain-parameter"},{"cve":"CVE-2026-4603","cvss":5.9,"epss":0.0011,"slug":"cve-2026-4603-jsrsasign-division-by-zero-in-rsa-public-key-parsing","title":"jsrsasign division by zero in RSA public key parsing","severity":"medium","exploited":false,"published_at":"2026-03-23T06:16:22.233+00:00","url":"https://junglewise.ai/threats/cve-2026-4603-jsrsasign-division-by-zero-in-rsa-public-key-parsing"},{"cve":"CVE-2020-14968","cvss":3.1,"epss":0.0286,"slug":"cve-2020-14968-jsrsasign-rsa-pss-signature-validation-bypass-via-prepended-zeros","title":"jsrsasign RSA-PSS signature validation bypass via prepended zeros","severity":"low","exploited":false,"published_at":"2020-06-26T16:26:50+00:00","url":"https://junglewise.ai/threats/cve-2020-14968-jsrsasign-rsa-pss-signature-validation-bypass-via-prepended-zeros"},{"cve":"CVE-2020-14967","cvss":3.1,"epss":0.0227,"slug":"cve-2020-14967-jsrsasign-rsa-pkcs-1-decryption-bypass-with-prepended-zeros","title":"jsrsasign RSA PKCS#1 decryption bypass with prepended zeros","severity":"low","exploited":false,"published_at":"2020-06-26T16:27:08+00:00","url":"https://junglewise.ai/threats/cve-2020-14967-jsrsasign-rsa-pkcs-1-decryption-bypass-with-prepended-zeros"},{"cve":"CVE-2020-14966","cvss":3.1,"epss":0.0113,"slug":"cve-2020-14966-jsrsasign-ecdsa-signature-validation-asn-1-encoding-bypass","title":"jsrsasign ECDSA signature validation ASN.1 encoding bypass","severity":"low","exploited":false,"published_at":"2020-06-26T16:54:15+00:00","url":"https://junglewise.ai/threats/cve-2020-14966-jsrsasign-ecdsa-signature-validation-asn-1-encoding-bypass"},{"cve":"CVE-2024-21484","cvss":3.1,"epss":0.0096,"slug":"cve-2024-21484-jsrsasign-rsa-pkcs-1-5-and-rsaoaep-marvin-attack","title":"jsrsasign RSA PKCS#1.5 and RSAOAEP Marvin attack","severity":"low","exploited":false,"published_at":"2024-01-19T15:06:07+00:00","url":"https://junglewise.ai/threats/cve-2024-21484-jsrsasign-rsa-pkcs-1-5-and-rsaoaep-marvin-attack"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}