Improper Certificate Validation Affecting openjdk-jre package, versions [,1.8.0_502)[11.0.0,11.0.32)[17.0.0,17.0.20)[21.0.0,21.0.12)[25.0.0,25.0.4)[26.0.0,26.0.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.29% (22nd percentile)

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  • Snyk IDSNYK-UPSTREAM-OPENJDKJRE-19668026
  • published10 Sept 2026
  • disclosed21 Jul 2026
  • creditUnknown

Introduced: 21 Jul 2026

CVE-2026-46968  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade openjdk-jre to version 8.0.502, 11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2 or higher.

Overview

openjdk-jre is a free and open-source implementation of the Java Platform, Standard Edition (Java SE).

Affected versions of this package are vulnerable to Improper Certificate Validation in its TLS handshake handling of the no_certificate warning alert, which was honored regardless of the negotiated protocol version and silently removed the CERTIFICATE and CERTIFICATE_VERIFY handshake consumers when the server had client authentication requested. An attacker connecting as the TLS client can make the server drop its expectation of a client certificate and CertificateVerify by sending a no_certificate alert during a TLSv1.x handshake, even though that alert is defined only for SSLv3. This affects a JSSE server operating with client authentication requested rather than required, and the flaw carries high attack complexity.

CVSS Base Scores

version 4.0
version 3.1