CVE-2026-67318 PUBLISHED

axios 1.13.0 before 1.18.0 maxBodyLength Bypass via HTTP/2

Assigner: VulnCheck
Reserved: 29.07.2026 Published: 01.08.2026 Updated: 01.08.2026

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.

Metrics

CVSS 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
CVSS Score: 6.3

Product Status

Vendor axios
Product axios
Versions Default: unaffected
  • affected from 1.13.0 to 1.18.0 (excl.)
  • Version 1.18.0 is unaffected

Credits

  • asadeddin reporter

References

Problem Types

  • Uncontrolled Resource Consumption CWE