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PatchSiren cyber security CVE debrief

CVE-2026-45290 CloudburstMC CVE debrief

A vulnerability in Cloudburst Network's network components, used within Cloudburst projects, was discovered in versions prior to `1.0.0.CR3-20260417.085727-30`. This vulnerability, with a CVSS score of 7.5 and HIGH severity, allows an attacker to exploit it and stall the netty event loop, rendering it inoperable. The affected software is publicly accessible, and all consumers of the library are advised to upgrade to at least version `1.0.0.CR3-20260417.085727-30`. There are no known workarounds beyond updating the library.

Vendor
CloudburstMC
Product
Network
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-05
Advisory published
2026-06-05
Advisory updated
2026-06-05

Who should care

Users of Cloudburst Network's network components, specifically those using versions prior to `1.0.0.CR3-20260417.085727-30`, should be aware of this vulnerability and take action to upgrade to a patched version.

Technical summary

The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H and is classified under CWE-770. It was published on [cvePublishedAt] and last modified on [cveModifiedAt].

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to at least version `1.0.0.CR3-20260417.085727-30` of the Cloudburst Network library.

Evidence notes

The CVE record can be found at [resourceLinkAnnotations.cve-org]. More details are available on the NVD website at [resourceLinkAnnotations.nvd]. The source item URL is [resourceLinkAnnotations.source-item], and a source reference can be found at [resourceLinkAnnotations.ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-45290 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-45290

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-45290 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-45290

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.