Detections
Analytics

SCA: security update for jsrsasign (GHSA-464q-cqxq-xhgr)

medium Tenable Self-Hosted Container Security Plugin ID 439493

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Versions of the package jsrsasign before 11.1.1 are vulnerable to Division by zero due to the
 RSASetPublic/KEYUTIL parsing path in ext/rsa.js and the BigInteger.modPowInt reduction logic in
 ext/jsbn.js. An attacker can force RSA public-key operations (e.g., verify and encryption) to collapse to
 deterministic zero outputs and hide “invalid key” errors by supplying a JWK whose modulus decodes to zero.
 (CVE-2026-4603)

Solution

Update the jsrsasign library and its related packages to version 11.1.1 or later.

See Also

https://github.com/advisories/GHSA-464q-cqxq-xhgr

Plugin Details

Severity: Medium

ID: 439493

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/31/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.6

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2026-4603

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 2

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/23/2026

Vulnerability Publication Date: 3/23/2026

Reference Information

CVE: CVE-2026-4603

cwe: CWE-369