CVE-2026-58040
Received Received - Intake

Incomplete Fix for HTTPS Agent TLS Hostname Verification Bypass in Node.js

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: HackerOne

Description
An incomplete fix has been identified in Node.js: HTTPS Agent TLS session reuse skips hostname verification across identity policies (incomplete fix of CVE-2026-48934). This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.

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Meta Information

Published
2026-07-30
Last Modified
2026-07-30
Generated
2026-08-19
AI Q&A
2026-07-30
EPSS Evaluated
2026-08-18
NVD
CVE-2026-58040
EUVD
EUVD-2026-51017

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
nodejs node.js From 22.x (inc)
nodejs node.js From 24.x (inc)
nodejs node.js From 26.x (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-297 The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.

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Executive Summary

This vulnerability is an incomplete fix in Node.js's HTTPS Agent TLS session reuse that skips hostname verification across identity policies. It affects Node.js versions 22.x, 24.x, and 26.x.

Impact Analysis

An attacker could exploit this to bypass hostname verification, potentially leading to man-in-the-middle attacks or unauthorized access to sensitive data transmitted over HTTPS.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR's data protection requirements or HIPAA's security rules for protected health information due to insufficient TLS hostname verification.

Mitigation Strategies

Update Node.js to the latest patched versions of 22.x, 24.x, or 26.x to address the incomplete fix for CVE-2026-48934. Review HTTPS Agent configurations to ensure hostname verification is enforced.

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