CVE-2026-102467: Vulnerability in Eclipse Foundation Eclipse Vert.x
Description
CVE-2026-102467 is a high-severity vulnerability in Eclipse Vert.x affecting versions 4.0.0 through 4.5.34, 5.0.0 through 5.0.12, 5.1.0 through 5.1.9, and version 5.2.0. The WebSocket implementation lacks a defined maximum byte allocation when decompressing frames or messages, which can be exploited to cause denial-of-service attacks using zip bombs.
CVSS v4.0
Score 8.7high
Affected software
Eclipse Foundation
Eclipse Vert.x
pkg:maven/io.vertx/vertx-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Eclipse Vert.x versions >=4.0.0 <=4.5.34, >=5.0.0 <=5.0.12, >=5.1.0 <=5.1.9, and =5.2.0 contain a vulnerability in the WebSocket component (io.vertx:vertx-core) where no maximum byte allocation limit is set during decompression of frames or messages. This flaw allows an attacker to craft compressed payloads (zip bombs) that can exhaust system resources, leading to denial-of-service conditions.
Potential Impact
An attacker can exploit this vulnerability to perform denial-of-service (DoS) attacks by sending specially crafted compressed WebSocket frames that cause excessive memory allocation during decompression. This can degrade or disrupt service availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- eclipse
- Date Reserved
- 2026-09-29T08:30:11.627Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad085772cdf04f65614e7a1
Added to database: 10/15/2026, 07:49:11 UTC
Last enriched: 10/15/2026, 08:03:24 UTC
Last updated: 10/15/2026, 08:08:12 UTC
Views: 8
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