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CVE-2026-4598

Published: Mar 23, 2026Updated: Jul 20, 2026 Sources: CVE List NVDCWE-835
7.5HIGH
NVD MITRE
EPSS Score
0.5%
Top 57.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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)).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-835CWE-1287

Affected Products

kjur
oss-project·JP
jsrsasignLibrary
OSS Libraries / generic-library
and 2 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938
security.snyk.io
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812263
security.snyk.io
https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264
gist.github.com
and 12 more references View all →

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