In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the WebSocket implementation does not define a maximum number of bytes allocation when decompressing frames or messages. This can be used to implement DDOS attacks with a zip bomb.



The impacted component is io.vertx:vertx-core.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00263.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Eclipse Foundation Eclipse Vert.x unaffected
Version Status Constraints
4.0.0 affected ≤ 4.5.34
5.0.0 affected ≤ 5.0.12
5.1.0 affected ≤ 5.1.9
5.2.0 affected —

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-h722-h6c2-6j3c cve-icon cve-icon
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/341 cve-icon cve-icon
History

Thu, 15 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the WebSocket implementation does not define a maximum number of bytes allocation when decompressing frames or messages. This can be used to implement DDOS attacks with a zip bomb. The impacted component is io.vertx:vertx-core.
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-10-15T14:37:49.556Z

Reserved: 2026-09-29T08:30:11.627Z

Link: CVE-2026-102467

cve-icon Vulnrichment

Updated: 2026-10-15T14:36:25.651Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-15T08:16:36.670

Modified: 2026-10-15T15:17:19.350

Link: CVE-2026-102467

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses