CVE-2021-30246

9.1 CRITICAL

Published: April 07, 2021 Modified: June 22, 2026

Description

In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly recognized to be valid. NOTE: there is no known practical attack.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/kjur/jsrsasign/issues/478

Source: cve@mitre.org

Third Party Advisory

https://github.com/kjur/jsrsasign/releases/tag/10.1.13

Source: cve@mitre.org

Release Notes Third Party Advisory

https://kjur.github.io/jsrsasign/

Source: cve@mitre.org

Release Notes Third Party Advisory

https://github.com/kjur/jsrsasign/issues/478

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/kjur/jsrsasign/releases/tag/10.1.13

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes Third Party Advisory

https://kjur.github.io/jsrsasign/

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.1 / 10.0

EPSS (Exploit Probability)

1.0%

57th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-347

Affected Vendors

kjur

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