Vulnerability · Published Jun 5, 2026 · Assigned by GitHub_M

CVE-2026-45290Cloudburst Network has DoS in RakNet connection handling due to missing bound checks

High 7.5

In plain English

A high-severity resource allocation without limits in Network from CloudburstMC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Cloudburst Network provides network components used within Cloudburst projects. A vulnerability in versions prior to `1.0.0.CR3-20260417.085727-30` impacts publicly accessible software depending on the affected versions of Network and allows an attacker to exploit a vulnerability in Network to stall the netty event loop, rendering it inoperable. All consumers of the library should upgrade to at least version `1.0.0.CR3-20260417.085727-30`. There are no known workarounds beyond updating the library.

Affected products (as reported)

Vendor	Product	Versions
CloudburstMC	Network	< 1.0.0.CR3-20260417.085727-30

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/CloudburstMC/Network/security/advisories/GHSA-7x5h-rg5x-9gf3 x_refsource_CONFIRM