Permissive List of Allowed Inputs in axios - CVE-2026-42043

Vulnerability identifier: #VU127594

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-42043

CWE-ID: CWE-183

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass proxy restrictions and disclose sensitive information.

The vulnerability exists due to permissive list of allowed inputs in lib/helpers/shouldBypassProxy.js when processing Axios requests to loopback addresses in the 127.0.0.0/8 range. A remote attacker can influence the target URL to bypass proxy restrictions and disclose sensitive information.

Exploitation requires the application to use proxy environment variables and rely on NO_PROXY rules to protect loopback services.

axios
Storage Sentinel Anomaly Scan Engine
IBM supplied MQ Advanced container images
Rational Developer for i
IBM Cloud Pak System
IBM MQ Operator
Jira Service Management Data Center
IBM Sterling Secure Proxy
IBM Sterling External Authentication Server
Confluence Data Center
Jira Software Data Center
IBM Decision Optimization for Cloud Pak for Data
Ubuntu
node-axios (Ubuntu package)
JBoss Data Grid

Install security update from vendor's website.

axios - addressed in versions 0.31.1, 1.15.1
Storage Sentinel Anomaly Scan Engine - update to 2.3.1
IBM Cloud Pak System - update to 2.3.5.1
IBM MQ Operator - addressed in versions 3.2.26 SC2, 4.0.1 SC2
Jira Service Management Data Center - addressed in versions 10.3.22, 11.3.7
IBM Sterling Secure Proxy - addressed in versions 6.1.0.4 iFix01, 6.2.1.2.iFix02
IBM Sterling External Authentication Server - update to 6.1.1.3 iFix01
Confluence Data Center - addressed in versions 9.2.22, 10.2.14
IBM supplied MQ Advanced container images - update to 10.0.0.0-r2
Rational Developer for i - update to 9.9.0.4
Jira Software Data Center - addressed in versions 10.3.22, 11.3.7
node-axios (Ubuntu package) - addressed in versions 0.19.0+dfsg-2ubuntu0.1~esm1, 0.26.0+dfsg-1ubuntu0.1~esm1, 1.6.8+dfsg-2ubuntu0.1~esm1, 1.13.2+dfsg-1ubuntu0.1~esm1
IBM Decision Optimization for Cloud Pak for Data - update to 5.3.1 patch 6
JBoss Data Grid - update to 8.6.1

• https://github.com/axios/axios/security/advisories/GHSA-pmwg-cvhr-8vh7
• https://github.com/advisories/GHSA-pmwg-cvhr-8vh7

• Multiple vulnerabilities in axios
• Multiple vulnerabilities in JBoss Data Grid 8.6
• Multiple vulnerabilities in Jira Service Management Data Center and Jira Service Management Server
• Multiple vulnerabilities in Jira Software Data Center
• Multiple vulnerabilities in IBM Decision Optimization for Cloud Pak for Data
• Multiple vulnerabilities in IBM Cloud Pak System
• Multiple vulnerabilities in IBM MQ Operator and Queue manager container images
• Multiple vulnerabilities in Confluence Data Center
• Ubuntu update for node-axios
• Multiple vulnerabilities in IBM Rational Developer for i
• Multiple vulnerabilities in IBM Storage Sentinel Anomaly Scan Engine
• Multiple vulnerabilities in IBM Sterling External Authentication Server
• Multiple vulnerabilities in IBM Sterling Secure Proxy