boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-4601HIGH
n/a jsrsasign — Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash …
  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   N   N   N   H   H   N    8.8   .0030   22.6     —
AFFECTED
  Product                    Versions     Fixed
  jsrsasign                  unspecified  —
  org.webjars.npm:jsrsasign  unspecified  —
TIMELINE
  Mar 22  Reserved by snyk
  Mar 23  Published (CNA: snyk)
  Aug 17  EXPLOIT PUBLISHED — CVE-2026-4601 (jsrsasign). Public exploit reference added.
  Aug 17  RESCORED — CVE-2026-4601 (jsrsasign). CVSS 9.4 → 8.8 (NVD).
CWE-325 · CNA: snyk · CVSS v4.0 · 15 references · NVD status: Modified

Description

Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA signing implementation. An attacker can recover the private key by forcing r or s to be zero, so the library emits an invalid signature without retrying, and then solves for x from the resulting signature.

Lifecycle

Complete event history — 4 events, chronological
DateEventDetail
March 22, 2026ReservedReserved by snyk
March 23, 2026PublishedPublished (CNA: snyk)
August 17, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-4601 (jsrsasign). Public exploit reference added.
August 17, 2026RESCOREDRESCORED — CVE-2026-4601 (jsrsasign). CVSS 9.4 → 8.8 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
n/ajsrsasign———
n/aorg.webjars.npm:jsrsasign———

Weaknesses

CWE-325

References (15)

Related

Authoritative record: CVE-2026-4601 at cve.org

Weaknesses: CWE-325

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-4601 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.