Vulnerability in Node.js Node

CVE-2026-58040

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**.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS 0.003, 20.4th percentile (scored ); unchanged over 30 days. About EPSS.

Affected products

Weakness classification (CWE)

Public exploits and proof-of-concept code

5 public repositories with exploit or proof-of-concept code for this CVE:

  • CompleTech-Security/node-cve-2026-58040-check (last pushed 2026-10-26): Offline Node.js evidence checker for CVE-2026-58040: HTTPS Agent TLS session identity-policy bypass. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.
  • CompleteTech-Security/node-cve-2026-58040-check (last pushed 2026-10-26): Offline Node.js evidence checker for CVE-2026-58040: HTTPS Agent TLS session identity-policy bypass. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.
  • CompleTetech-Security/node-cve-2026-58040-check (last pushed 2026-10-26): Offline Node.js evidence checker for CVE-2026-58040: HTTPS Agent TLS session identity-policy bypass. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.
  • completetech-security/node-cve-2026-58040-check (last pushed 2026-10-24): Standalone defensive checker project for CVE-2026-58040: Node.js: HTTPS Agent TLS session identity-policy bypass. One exploit per repository; implementation pending.
  • CompleteTech-LLC/node-cve-2026-58040-check (last pushed 2026-10-24): Standalone defensive checker project for CVE-2026-58040: Node.js: HTTPS Agent TLS session identity-policy bypass. One exploit per repository; implementation pending.

References

This CVE has public exploit evidence. See the latest CVEs with public exploits.