CVE-2026-40175
Axios has Unrestricted Cloud Metadata Exfiltration via Header Injection Chain
- Published
- Apr 10, 2026
- Updated
- Sep 9, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Aug 25, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 78.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain in which prototype pollution in a third-party dependency may be leveraged to inject unsanitized header values into outbound requests. This vulnerability is fixed in 1.15.0 and 0.3.1.
Sources
2- CVE-2026-40175Research
CVE-2026-40175
Proof-of-concept demonstrating CRLF injection and HTTP request smuggling in Axios, chaining prototype pollution to achieve SSRF and access internal services like IMDS.
Responsible use
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