Resource exhaustion in Oracle Jdk
CVE-2026-47057
Vulnerability in Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf and 11.0.31. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Vulnerability class: DoS (Denial of Service)
EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Oracle Jdk — versions 1.8.0, 11.0.31
- Oracle Jre — versions 1.8.0, 11.0.31
- Oracle Corporation Java Se — versions 8u491, 8u491-perf, 11.0.31
Weakness classification (CWE)
References
- secalert_us@oracle.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-47057?
- CVE-2026-47057 is a high-severity vulnerability in Oracle Jdk, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-07-21.
- How severe is CVE-2026-47057?
- High severity. CVSS v3 base score is 7.5 out of 10.