CVE-2026-67318 axios 1.13.0 before 1.18.0 maxBodyLength Bypass via HTTP/2
An attacker can bypass maxBodyLength limits in axios when using HTTP/2, causing excessive data transmission and resource consumption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-67318?
CVE-2026-67318 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 >=1.13.0 (Node.js HTTP adapter) fail to enforce the configured maxBodyLength limit on streamed request bodies when requests are sent with httpVersion: 2. Because Node's HTTP/2 request API does not honor the maxBodyLength option and axios's byte-counting stream wrapper is gated on maxRedirects === 0, an attacker who controls a stream passed to axios can cause the application to transmit outbound data exceeding the configured finite maxBodyLength. Impact is limited to resource consumption and policy bypass (excess egress, upstream quota consumption, limited availability); it does not enable code execution, credential disclosure, or request-destination control. Calls using the default maxBodyLength: -1 and browser adapters are not affected.
Weakness: CWE-400
Which versions are affected by CVE-2026-67318?
2 open source packages ship an affected version, including axios. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
axios npm | From 1.13.0 | 1.18.0 |
axios npm | From 1.13.0 | 1.18.0 |
Products include Axios Axios.
How do I fix CVE-2026-67318?
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-2026-67318 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67318 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-WK22081, CVE-2026-68948, DEBIAN-CVE-2026-67318, ECHO-6029-10c5-854f, GHSA-mwf2-3pr3-8698, MINI-2qx7-rfrv-qx42 and 19 more.