CVE-2026-4600

jsrsasign · Vulnerability

CVSS 3.1 7.4 HIGHCVSS 4.0 9.1 CRITICALEUVD CVSS 4.0 9.1 CVSS 4.0 · [email protected] · Secondary 8.1 HIGHCVSS 3.1 · [email protected] · Secondary 7.4 HIGHCVSS 3.1 · [email protected] · Primary 9.1 CRITICALCVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary 8.2 HIGHCVSS_V3 CVSS_V4 Publisher rating HIGHFixed by jsrsasign 11.1.1KEV status unknown

Original advisory

cve-program · CVE-2026-4600

Published

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signatures or X.509 certificates that X509.verifySignature() accepts by supplying malicious domain parameters such as g=1, y=1, and a fixed r=1, which make the verification equation true for any hash.

Read the publisher's advisory

euvd · EUVD-2026-14375

Published

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nvd · CVE-2026-4600

Published

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osv · GHSA-wvqx-v3f6-w8rh

Published

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Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

Which CVEs have scores here?

This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

cve-program · CVE-2026-4600

Published

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2…

Source published: 23 Mar 2026 05:00:08 UTC
Source modified: 10 Sep 2026 12:05:08 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

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

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P

CVSS 4.0 · 9.1 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

euvd · EUVD-2026-14375

Published

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2…

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 23, 2026, 5:00:08 AM

dateUpdated: Sep 10, 2026, 12:05:08 PM

7 related source bulletins · separate from aliases

RHSA-2026:19410: Red Hat Security Advisory: MTV RHEL9 Images

CVE-2026-4598 · CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-4800 · CVE-2026-4926 · CVE-2026-29063

RHSA-2026:19409: Red Hat Security Advisory: MTV RHEL9 Images

CVE-2026-4598 · CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-4800 · CVE-2026-4926 · CVE-2026-29063

RHSA-2026:6912: Red Hat Security Advisory: Red Hat Quay 3.10.20

CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-28498 · CVE-2026-30922 · CVE-2026-32597

RHSA-2026:19375: Red Hat Security Advisory: Red Hat Quay 3.16.4

CVE-2025-61726 · CVE-2025-62718 · CVE-2026-2377 · CVE-2026-4427 · CVE-2026-4598 · CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-25679 · CVE-2026-27137 · CVE-2026-27459 · CVE-2026-27962 · CVE-2026-28802 · CVE-2026-29063 · CVE-2026-29074 · CVE-2026-30922 · CVE-2026-32280 · CVE-2026-32282 · CVE-2026-32286 · CVE-2026-32589 · CVE-2026-32590 · CVE-2026-32597 · CVE-2026-33186 · CVE-2026-33894 · CVE-2026-34986 · CVE-2026-39892 · CVE-2026-40192 · CVE-2026-40895 · CVE-2026-42033 · CVE-2026-42035 · CVE-2026-42039 · CVE-2026-42041 · CVE-2026-42043 · CVE-2026-42044

RHSA-2026:6720: Red Hat Security Advisory: Red Hat Quay 3.12.16

CVE-2026-4598 · CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-25679 · CVE-2026-28498 · CVE-2026-29063 · CVE-2026-30922 · CVE-2026-32597

RHSA-2026:6926: Red Hat Security Advisory: Red Hat Quay 3.9.20

CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-29063 · CVE-2026-29074 · CVE-2026-30922 · CVE-2026-32597

RHSA-2026:6568: Red Hat Security Advisory: Red Hat Quay 3.15.4

CVE-2024-34156 · CVE-2024-45337 · CVE-2024-45338 · CVE-2025-61726 · CVE-2025-61728 · CVE-2025-61729 · CVE-2025-68121 · CVE-2025-68158 · CVE-2025-69873 · CVE-2026-4598 · CVE-2026-4599 · CVE-2026-4600 · CVE-2026-4601 · CVE-2026-4602 · CVE-2026-25639 · CVE-2026-25990 · CVE-2026-26007 · CVE-2026-26996 · CVE-2026-27628 · CVE-2026-27904 · CVE-2026-28498 · CVE-2026-28802 · CVE-2026-29063 · CVE-2026-29074 · CVE-2026-30922 · CVE-2026-32597

Source published: Mar 23, 2026, 5:00:08 AM (timezone not stated)
Source modified: Sep 10, 2026, 12:05:08 PM (timezone not stated)
Saved here: 14 Nov 2026 00:09:51 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 4.0 · 9.1 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

nvd · CVE-2026-4600

Published

Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2…

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-347

Original publisher date fields

published: 2026-03-23T06:16:21.697

lastModified: 2026-09-10T13:20:22.247

1 source CPE criteria · context only

cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 23 Mar 2026 06:16:21 UTC
Source modified: 10 Sep 2026 13:20:22 UTC
Saved here: 25 Oct 2026 12:17:14 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

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

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 4.0 · [email protected] · Secondary · 8.1 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Secondary · 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS 3.1 · [email protected] · Primary · 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

osv · GHSA-wvqx-v3f6-w8rh

Published

jsrsasign: DSA signatures or X.509 certificates can be forged via DSA domain-parameter validation in KJUR.crypto.DSA.setPublic

Source published: 23 Mar 2026 06:30:29 UTC
Source modified: 21 Jul 2026 15:15:51 UTC
Saved here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS_V4 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

Publisher rating · HIGH