CVE-2026-101898: Axios HTTP/2 request proxy and DNS lookup policy bypass

CVE-2026-101898 · Severity: high · CVSS 4 · Published 2026-09-28

Axios is an HTTP client library used by web applications and Node.js services. In versions 1.13.0 through 1.19.x, HTTPS requests over HTTP/2 fail to apply configured proxy settings or custom DNS resolution policies, allowing requests to bypass intended network routing and security controls. This affects any application using Axios with HTTP/2 that relies on proxies for security filtering or DNS policies for name resolution.

Technologies: Axios, axios (npm). Vendors: Axios, npm.

Quick answers

Is CVE-2026-101898 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-101898 being exploited in the wild.
How severe is CVE-2026-101898?
High severity, with a CVSS score of 4, published 28 September 2026.
Which products and versions are affected?
Axios 1.13.0 through 1.19.x; axios (npm) >= 1.13.0, < 1.20.0, SEMVER:introduced=1.13.0,fixed=1.20.0.
Is there a fix for CVE-2026-101898?
Yes. axios (npm): upgrade to 1.20.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-101898 attacked?
It is attacked over the network.
Am I affected by CVE-2026-101898?
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 1.20.0 or later
    npm install axios@1.20.0

Technical details

The vulnerability exists in Axios's HTTP/2 request setup code, which does not consistently apply caller-supplied proxy configuration (config.proxy or environment variables) or custom DNS lookup policies (config.lookup) before invoking http2.connect(). An attacker with network-level access or control over application configuration could force HTTP/2 HTTPS requests to bypass proxy and DNS policy enforcement. The issue is patched in version 1.20.0.

Affected products

  • axios Axios 1.13.0 through 1.19.x

Identifiers

  • CVE-2026-101898
  • GHSA-3pq3-5fj3-cg6v

Timeline

  • 2026-08-12: patched: Fixed in version 1.20.0 via commit d19040b
  • 2026-09-28: disclosed

References

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