Improper Certificate Validation Affecting openjdk package, versions [,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)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OPENJDK-19668028
- published10 Sept 2026
- disclosed21 Jul 2026
- creditUnknown
Introduced: 21 Jul 2026
CVE-2026-46968 (opens in a new tab)How to fix?
Upgrade openjdk to version 8.0.502, 11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2 or higher.
Overview
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.