Vulnerability · Published Aug 1, 2026 · Assigned by VulnCheck

CVE-2026-67317axios 1.7.0 before 1.18.0 maxBodyLength Bypass via ReadableStream

Medium 6.3

In plain English

A medium-severity resource allocation without limits in axios from axios. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.6%top 51.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	node-axios	no fix listed	DEBIAN-CVE-2026-67317
Debian:13	node-axios	no fix listed	DEBIAN-CVE-2026-67317
Debian:14	node-axios	1.18.0-1	DEBIAN-CVE-2026-67317
npm	axios	1.18.0	GHSA-jqh4-m9w3-8hp9

Affected products (as reported)

Vendor	Product	Versions
axios	axios	1.7.0 – before 1.18.0

Weakness: CWE-770 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

References

GitHub Security Advisory (GHSA-jqh4-m9w3-8hp9) vendor-advisory
VulnCheck Advisory: axios 1.7.0 before 1.18.0 maxBodyLength Bypass via ReadableStream third-party-advisory