CVE-2021-30246

mediumPriorität · verfolgen · 36EPSS 0.010 · 61. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.96% (61st) EPSS

CVSS 6.4 · medium

Is it mine?

3 products

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Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · bewertet 2026-10-27

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 4.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.2

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-347USprimärCWE-347US

betroffene Produkte (3)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
kjur jsrsasign≤ 10.1.13nvdUScpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:*:*:*
npm jsrsasign< 10.2.0osvUSpkg:npm/jsrsasign

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-27fj-mc8w-j9wgRSA signature validation vulnerability on maleable encoded message in jsrsasign2021-04-16ghsa · osvUS
### Impact Vulnerable jsrsasign will accept RSA signature with improper PKCS#1.5 padding. Decoded RSA signature value consists following form: `01(ff...(8 or more ffs)...ff)00[ASN.1 OF DigestInfo]` Its byte length must be the same as RSA key length, however such checking was not sufficient. To make crafted message for practical attack is very hard. ### Patches Users validating RSA signature should upgrade to 10.2.0 or later. ### Workarounds There is no workaround. Not to use RSA signature validation in jsrsasign. ### ACKNOWLEDGEMENT Thanks to Daniel Yahyazadeh @yahyazadeh for reporting and analyzing this vulnerability.

auch bekannt als (3)

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quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

veröffentlicht 2021-04-07geändert 2026-06-22

verwandt (1,048)

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+1043 weitere

Referenzen (10)

Externe Belege — Patches, Meldungen, Analysen.

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