CVE-2026-39865

Axios HTTP/2 Session Cleanup State Corruption Vulnerability

State: Published
Severity: 5.9 Medium
Published: Apr 8, 2026
Updated: Apr 27, 2026
Reserved: Apr 7, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-662 Improper Synchronization

Affected Products

Product	Versions
axiosaxios	>= 1.13.0, < 1.13.2Affected

References

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