Improper Certificate Validation Affecting org.graalvm.sdk:graal-sdk package, versions [,17.0.20)[21.0.0,21.0.12)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JAVA-ORGGRAALVMSDK-19668027
- published10 Sept 2026
- disclosed21 Jul 2026
- creditUnknown
Introduced: 21 Jul 2026
CVE-2026-46968 (opens in a new tab)How to fix?
Upgrade org.graalvm.sdk:graal-sdk to version 17.0.20, 21.0.12 or higher.
Overview
org.graalvm.sdk:graal-sdk is a high-performance JDK distribution designed to accelerate the execution of applications written in Java and other JVM languages along with support for JavaScript, Ruby, Python, and a number of other popular languages.
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.