CVE-2026-44492

Description

The vulnerability exists due to the shouldBypassProxy logic failing to properly recognize and normalize IPv4-mapped IPv6 addresses (e.g., ::ffff:192.168.1.1) to their standard decimal representations. This allows an attacker to supply a mapped address that bypasses intended NO_PROXY exclusion rules.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

8.6 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Effective score

8.6 / 10 HIGH source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-44492

Linked Threat

CVE-2026-44492 — CVE-2026-44492

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-06-11 17:16:33 UTC

NVD last modified

2026-07-31 13:18:40 UTC

NVD CVSS v3.1

8.6 / 10 HIGH source: security-advisories@github.com

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploitability subscore

3.9 / 10

Impact subscore

4.0 / 10

EPSS score

0.0087 (probability of exploitation in next 30 days)

EPSS percentile

55.28% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

NVD-assigned CWE(s): CWE-918, CWE-289 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-36255

Assigner

GitHub_M

Published

Jun 11, 2026, 3:29:13 PM

Updated

Jul 31, 2026, 12:04:42 PM

EUVD base score (CVSS 3.1)

8.6 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EUVD-reported EPSS

0.8700

Vendors

axios

Products

axios (< 0.32.0)

axios (1.0.0, < 1.16.0)

Aliases

GHSA-pjwm-pj3p-43mv

ENISA description: Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise IPv4-mapped IPv6 addresses. When NO_PROXY lists an IPv4 address such as 127.0.0.1 or 169.254.169.254, a request URL using the IPv4-mapped IPv6 form (::ffff:7f00:1, ::ffff:a9fe:a9fe) still routes through the configured proxy. Node.js resolves these addresses to the underlying IPv4 host, so the request reaches the internal service via the proxy rather than being blocked. This vulnerability is fixed in 0.32.0 and 1.16.0.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (2)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://nvd.nist.gov/vuln/detail/CVE-2026-44492 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-44492 tenable:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• Microsoft Confirms Defender RoguePlanet 0-Day Exploit and Working to ...
  web:cybersecuritynews.com

  Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.

  2026-06-19 02:33 UTC
• Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...
  web:cybersecuritynews.com

  Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

  2026-06-19 02:33 UTC
• Security Update Guide - Microsoft Security Response Center
  web:msrc.microsoft.com

  Security Update Guide - Microsoft Security Response Center

  2026-06-19 02:33 UTC
• Security Update Guide - Loading - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-06-19 02:33 UTC
• SAP Security Patch Day - February 2026
  web:support.sap.com

  SAP security Patch Day Bulletin

  2026-06-19 02:33 UTC
• Microsoft is working on a patch for 'YellowKey ... - Computerworld
  web:www.computerworld.com

  Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...

  2026-06-19 02:33 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-06-19 02:33 UTC
• Oracle Critical Security Patch Update Advisory - May 2026
  web:www.oracle.com

  This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.

  2026-06-19 02:33 UTC
• CVE-2026-44492 - High Vulnerability - TheHackerWire
  web:www.thehackerwire.com

  How severe is CVE-2026-44492 ? What Axios products are affected by CVE-2026-44492 ? How do I fix or mitigate CVE-2026-44492 ? When was CVE-2026-44492 disclosed?

  2026-06-19 02:33 UTC
• Patch Tuesday June 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-06-19 02:33 UTC

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