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-2026-4602HIGH
n/a jsrsasign — Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exp…
  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   N   H    7.7   .0049   40.2     —
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-2026-4602 (jsrsasign). Public exploit reference added.
  Aug 17  RESCORED — CVE-2026-4602 (jsrsasign). CVSS 8.7 → 7.7 (NVD).
CWE-681 · CNA: snyk · CVSS v4.0 · 15 references · NVD status: Modified

Description

Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types due to handling negative exponents in ext/jsbn2.js. An attacker can force the computation of incorrect modular inverses and break signature verification by calling modPow with a negative exponent.

Lifecycle

Complete event history — 4 events, chronological
DateEventDetail
March 22, 2026ReservedReserved by snyk
March 23, 2026PublishedPublished (CNA: snyk)
August 17, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-4602 (jsrsasign). Public exploit reference added.
August 17, 2026RESCOREDRESCORED — CVE-2026-4602 (jsrsasign). CVSS 8.7 → 7.7 (NVD).

Affected

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

Weaknesses

CWE-681

References (15)

Related

Authoritative record: CVE-2026-4602 at cve.org

Weaknesses: CWE-681

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-4602 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.