# CVE-2026-44492: Axios SSRF via IPv4-mapped IPv6 NO_PROXY bypass

Source: https://junglewise.ai/threats/cve-2026-44492-axios-ssrf-via-ipv4-mapped-ipv6-no-proxy-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-11. Updated: 2026-06-11  
License: CC BY 4.0 with a link back

CVE-2026-44492 · Severity: high · CVSS 8.6 · Published 2026-06-11

Axios is a widely used tool for making web requests in applications. A security flaw allows attackers to bypass safety rules that are supposed to prevent the application from connecting to sensitive internal services or private cloud data. This could lead to the theft of secret credentials or unauthorized access to internal company systems.

Technologies: [Axios](https://junglewise.ai/threats/technologies/axios), [axios (npm)](https://junglewise.ai/threats/technologies/npm-axios). Vendors: [Axios](https://junglewise.ai/threats/vendors/axios), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-44492 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-44492 being exploited in the wild.

**How severe is CVE-2026-44492?** High severity, with a CVSS score of 8.6, published 11 June 2026.

**Which products and versions are affected?** Axios >= 1.0.0, < 1.16.0; <= 0.31.1; axios (npm) SEMVER:introduced=1.15.0,fixed=1.16.0.

**Is there a fix for CVE-2026-44492?** Yes. axios (npm): upgrade to 1.16.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-44492 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-44492?** Check whether you run Axios or axios (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- axios (npm): upgrade to 1.16.0 or later

  ```sh
  npm install axios@1.16.0
  ```


## Technical details

A Server-Side Request Forgery (SSRF) vulnerability exists in Axios due to improper normalization of IPv4-mapped IPv6 addresses in the 'shouldBypassProxy' helper. When a 'NO_PROXY' list contains an IPv4 address (e.g., 127.0.0.1), an attacker can provide a URL using the equivalent IPv6-mapped format (e.g., ::ffff:7f00:1). Because Axios does not recognize these as identical, it routes the request through the configured proxy instead of bypassing it. Node.js then resolves these addresses to the underlying IPv4 host, allowing the request to reach internal services or cloud metadata endpoints (IMDS). This is an incomplete fix for a previous vulnerability and is resolved in versions 0.32.0 and 1.16.0.

## Affected products

- Axios Axios >= 1.0.0, < 1.16.0; < 0.32.0

## Identifiers

- CVE-2026-44492
- GHSA-pjwm-pj3p-43mv

## Timeline

- 2026-05-29: advisory: GitHub advisory published by maintainers
- 2026-06-11: disclosed: CVE-2026-44492 published to NVD

## References

- [https://github.com/axios/axios/security/advisories/GHSA-pjwm-pj3p-43mv](https://github.com/axios/axios/security/advisories/GHSA-pjwm-pj3p-43mv)

## Related threats

- [Axios NO_PROXY CIDR notation bypass in Node.js adapter](https://junglewise.ai/threats/cve-2026-101899-axios-cidr-form-no-proxy-entries-are-ignored-causing-proxy)
- [Axios prototype pollution in ToFormData](https://junglewise.ai/threats/cve-2026-101909-axios-is-a-promise-based-http-client-for-the-browser-and-node-js)
- [Axios fetch adapter header injection via prototype pollution](https://junglewise.ai/threats/cve-2026-101908-axios-is-a-promise-based-http-client-for-the-browser-and-node-js)
- [Axios fetch adapter maxRedirects bypass](https://junglewise.ai/threats/cve-2026-101907-axios-is-a-promise-based-http-client-for-the-browser-and-node-js)
- [Axios ReDoS in shouldBypassProxy regular expression](https://junglewise.ai/threats/cve-2026-101906-axios-is-a-promise-based-http-client-for-the-browser-and-node-js)