CVE Watch25 ago 2026

CVE-2020-13935

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.

CVSS

7.5

Alto

EPSS

86.6%

p100

KEV

—

Exploit Today

0-100

Publicado: 14 jul 2020 · Última mod.: 25 ago 2026 · CWE-835

EPSS · 30d

86.6%EPSS · 30 días86.6%

2026-08-022026-08-31

Descripción técnica

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

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