CVE-2026-67317 axios 1.7.0 before 1.18.0 maxBodyLength Bypass via ReadableStream
Attackers can bypass upload size limits in axios using ReadableStream, causing resource exhaustion or uncontrolled network egress.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-67317?
CVE-2026-67317 is a medium-severity denial of service vulnerability in axios, published on 1 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
axios versions 1.7.0 before 1.18.0 fail to enforce maxBodyLength for WHATWG ReadableStream request bodies in the fetch adapter when Content-Length cannot be determined. Attackers can supply unknown-length stream data to bypass upload size limits and cause uncontrolled network egress or resource exhaustion.
Weakness: CWE-770
Which versions are affected by CVE-2026-67317?
2 open source packages ship an affected version, including axios. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
axios npm | From 1.7.0 | 1.18.0 |
axios npm | From 1.7.0 | 1.18.0 |
Products include Axios Axios.
How do I fix CVE-2026-67317?
Upgrade axios to 1.18.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-67317 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67317 exists.
Other vulnerabilities in axios
- CVE-2026-44494 Axios: Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
- CVE-2026-44492 axios's shouldBypassProxy does not recognize IPv4-mapped IPv6 addresses, allowing NO_PROXY bypass (incomplete fix for CVE-2025-62718)
- CVE-2026-67320 axios before 0.33.0 Prototype Pollution via Node HTTP adapter
- CVE-2026-44487 Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter
- CVE-2025-27152 Possible SSRF and Credential Leakage via Absolute URL in axios Requests
Sources
Also known as CLEANSTART-2026-UT37869, CVE-2026-68947, DEBIAN-CVE-2026-67317, ECHO-4428-16b6-178e, GHSA-jqh4-m9w3-8hp9, MINI-23r9-phv7-8f8h and 27 more.