CVE-2020-2805

OpenJDK: Incorrect type checks in MethodType.readObject() (Libraries, 8235274)

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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 · August 26, 2026

Description

A flaw was found in the way the readObject() method of the MethodType class in the Libraries component of OpenJDK checked argument types. This flaw allows an untrusted Java application or applet to bypass Java sandbox restrictions.

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:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-20 · Improper Input Validation