PT-2026-86673 · Eclipse Foundation+1 · Eclipse Jetty+1

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CVE-2026-19204

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Publicado

2026-09-07

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Atualizado

2026-09-07

CVSS v4.0

8.7

Alta

VetorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to attempt a large memory allocation and potentially exhaust the JVM heap.
This occurs when auto-fragmentation is enabled, as unknown opcodes bypass the normal maximum frame size handling and payload allocation occurs before the opcode is validated.

Exploit

Correção

Allocation of Resources Without Limits

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Enumeração de Fraquezas

Identificadores relacionados

CVE-2026-19204
GHSA-85FQ-FC5F-7J7G

Produtos afetados

Eclipse Jetty
Jetty.Project