CVE-2026-5680 - A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer() method using exponential doubling, resulting in a Denial of Service (DoS) for the affected application. - 漏洞详情

漏洞编号：CVE-2026-5680

风险等级：高危

漏洞来源：CVE

CVE 编号：CVE-2026-5680

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-770

发布/更新时间：2026-08-27 / 2026-08-27

漏洞描述

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer() method using exponential doubling, resulting in a Denial of Service (DoS) for the affected application.

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