Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-44492

CVE-2026-44492HIGH

Axios: shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  C  H  N  N    8.6   .0078   54.5     —

AFFECTED
  Product  Versions              Fixed
  axios    >= 1.0.0, < 1.16.0 –  —

TIMELINE
  May 6   Reserved by GitHub_M
  Jun 11  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Jun 11  Published (CNA: GitHub_M)
  Aug 24  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Aug 25  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Aug 26  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Aug 28  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Sep 3   EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Sep 7   EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Sep 9   EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Sep 10  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
  Sep 11  EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.

CWE-918, CWE-289 · CNA: GitHub_M · CVSS v3.1 · 49 references · NVD status: Modified

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.

Lifecycle

Complete event history — 12 events, chronological
Date	Event	Detail
May 6, 2026	Reserved	Reserved by GitHub_M
June 11, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
June 11, 2026	Published	Published (CNA: GitHub_M)
August 24, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
August 25, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
August 26, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
August 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
September 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
September 7, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
September 9, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
September 10, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.
September 11, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44492 (axios). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
axios	axios	—	>= 1.0.0, < 1.16.0	—

Weaknesses

CWE-918 · CWE-289

References (49)

Authoritative record: CVE-2026-44492 at cve.org

Vendors: axios

Weaknesses: CWE-918 · CWE-289

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44492 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.