Is CVE-2026-39865 actively exploited?

No active exploitation of CVE-2026-39865 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39865 be exploited remotely?

Yes. CVE-2026-39865 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39865?

CVE-2026-39865 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2026-39865

CWE-400Published: April 8, 2026· Updated: Apr 13, 2026

5.9

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-39865 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.9.