Is CVE-2026-47843 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-47843?

CVE-2026-47843 has a CVSS v3 severity of LOW (3.7).

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CVE-2026-47843

Description

In specific scenarios involving multiple clients with different DNS resolver configurations, Reactor Netty may incorrectly reuse a previously configured DNS resolver. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier