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THREAT OPS › Threat News › [NVD] CVE-2026-47021 (MEDIUM 5.3) — Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK

[NVD] CVE-2026-47021 (MEDIUM 5.3) — Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK

mednvdPublished 2026-07-21

CVE-2026-47021 CVSS: 5.3 MEDIUM Published: 2026-07-21T22:17:07.670

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 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 Ed

MITRE ATT&CK techniques

Web ServiceT1102

Indicators of compromise

CVE-2026-47021cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-47021