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CVE

CWE

Training

CVE-2026-4598

Published: Mar 23, 2026

Modified: Mar 23, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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)).

Vendor	Product	Versions
n/a	jsrsasign	affected `0 - < 11.1.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938

https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264

https://github.com/kjur/jsrsasign/pull/648

https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323

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