CVE-2026-55602
8.6 · HIGHOverview
CVE-2026-55602 is a high-severity vulnerability affecting chimurai http-proxy-middleware. It was published on June 22, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
http-proxy-middleware is node.js http-proxy middleware. From 0.16.0 until 2.0.10, 3.0.6, and 4.1.0, http-proxy-middleware documents router proxy-table entries as host, path, or host+path selectors, but the host+path implementation uses unanchored substring matching on attacker-controlled request metadata. As a result, a crafted Host header that is only a superstring match for a configured host+path key can still route a request to an unintended backend. This vulnerability is fixed in 2.0.10, 3.0.6, and 4.1.0.
Remediation
Check the references section for vendor advisories and patches from chimurai. Update http-proxy-middleware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| chimurai | http-proxy-middleware | >= 0.16.0, < 2.0.10 | Affected |
Frequently Asked Questions
What is CVE-2026-55602?
CVE-2026-55602 is a high-severity vulnerability affecting chimurai http-proxy-middleware. It was published on June 22, 2026 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2026-55602?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-55602?
Check the references section for vendor advisories and patches from chimurai. Update http-proxy-middleware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-55602?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-55602 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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