Vulnerability Description
Axios is a promise based HTTP client for the browser and Node.js. Starting in version 1.13.0 and prior to 1.13.2, Axios HTTP/2 session cleanup logic contains a state corruption bug that allows a malicious server to crash the client process through concurrent session closures. The vulnerability exists in the Http2Sessions.getSession() method in lib/adapters/http.js. The session cleanup logic contains a control flow error when removing sessions from the sessions array. This vulnerability is fixed in 1.13.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Axios | Axios | >= 1.0.0, < 1.13.2 |
Related Weaknesses (CWE)
References
- https://github.com/axios/axios/commit/0588880ac7ddba7594ef179930493884b7e90bf5
- https://github.com/axios/axios/releases/tag/v1.13.2
- https://github.com/axios/axios/security/advisories/GHSA-qj83-cq47-w5f8ExploitVendor Advisory
FAQ
What is CVE-2026-39865?
CVE-2026-39865 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Axios is a promise based HTTP client for the browser and Node.js. Starting in version 1.13.0 and prior to 1.13.2, Axios HTTP/2 session cleanup logic contains a state corruption bug that allows a malic...
How severe is CVE-2026-39865?
CVE-2026-39865 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-39865?
Check the references section above for vendor advisories and patch information. Affected products include: Axios Axios.