CVE-2026-46917: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle

CSIRTS triage

vendor: Oracle product: Java SEOtheraffected: 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; GraalVM for JDK: 17.0.19 and 21.0.1

What: A vulnerability exists in the JSSE component that could affect the security of applications using Oracle Java SE and GraalVM.
Who is affected: Users of the specified versions of Oracle Java SE and GraalVM are affected.
Urgency: Remediation is medium urgency due to the potential impact on security, although exploitation has not been reported.
Action: Upgrade to the latest versions of Oracle Java SE and GraalVM to address the vulnerability.

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EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-469170.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all scored CVEs.

CVE	CSIRTS overview	External
CVE-2026-46917	coverage & exploitation status	NVD · CVE.org

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