Is CVE-2026-44214 actively exploited?

No active exploitation of CVE-2026-44214 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44214 be exploited remotely?

Yes. CVE-2026-44214 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44214?

CVE-2026-44214 has a CVSS score of 5.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-44214

MEDIUM

CVE-2026-44214

CWE-93Published: May 26, 2026· Updated: May 28, 2026

5.3

CVSS v3.1

Official Description

eventsource-encoder encodes events as well-formed EventSource/Server Sent Event (SSE) messages. Prior to 1.0.2, eventsource-encoder does not sanitize the event or id fields of an EventSourceMessage before serializing them. An attacker who controls either field can inject arbitrary Server-Sent Events line terminators (\n, \r, or \r\n) and thereby forge additional SSE fields or entire messages on the stream. This vulnerability is fixed in 1.0.2.

NVD Source

Technical Analysis

CVE-2026-44214 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.