CVE-2026-67317

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.

• CWE-770

• https://github.com/axios/axios/security/advisories/GHSA-jqh4-m9w3-8hp9Exploit, Mitigation, Vendor Advisory
• https://www.vulncheck.com/advisories/axios-before-maxbodylength-bypass-via-readablestreamThird Party Advisory
• https://github.com/axios/axios/security/advisories/GHSA-jqh4-m9w3-8hp9Exploit, Mitigation, Vendor Advisory

Published

Aug 1, 2026

Last Modified

Sep 1, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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