CVE WatchJul 15, 2026

CVE-2026-4598

Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigIn

CVSS

7.5

High

EPSS

0.6%

p42

KEV

—

Exploit Today

0-100

Published: Mar 23, 2026 · Last modified: Jul 15, 2026 · CWE-835 · CWE-1287

EPSS · 30d

0.6%EPSS · 30 days0.6%

2026-06-302026-07-16

Technical description

Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).

Official references

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