CVE-2020-2816

OpenJDK: Application data accepted before TLS handshake completion (JSSE, 8235691)

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · April 14, 2020

Updated · November 22, 2025

Description

A flaw was found in the TLS/SSL implementation in the JSSE component of OpenJDK, where it did not properly handle application data packets received before the handshake completion. This flaw allowed unauthorized injection of data at the beginning of a TLS session.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE-358 · Improperly Implemented Security Check for Standard