Cross-site scripting in Oracle Java SE
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Vulnerability in Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java SE: 8u471-b50. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data. Note: This vulnerability 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. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.1 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Oracle | Oracle Java SE | 8u471-b50 | — | No fix listed | CNA |
- Oracle Java SE VendorOracle Affected 8u471-b50 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle Java SE — oracle.com/security-alerts/cpujan2026.html
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2026-17645 Uncontrolled resource consumption in Oracle Java SEPriority MEDIUM 41
- TI-2026-17632 Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise…Priority LOW 33
- TI-2026-17633 Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise…Priority LOW 27
Timeline
- 2026-10-02 Threatist record created from CVE-2026-21947
- 2026-10-03 Alias added: GHSA-998g-2mp2-f264
References
Advisory 1
More Oracle Jdk vulnerabilities
- TI-2016-02888 Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77… KEVCVSS 3.1CRITICAL 9.8
- TI-2015-02278 Unspecified vulnerability in Oracle Java SE 6u95, 7u80, and 8u45, and Java SE Embedded… KEVCVSS 3.1CRITICAL 9.8
- TI-2013-00349 Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2012-03989 Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java… KEVCVSS 3.1CRITICAL 9.8
- TI-2012-01511 Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java… KEVCVSS 3.1CRITICAL 9.8
- TI-2011-03122 Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE JDK… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-21947 · CVE Program
- CVE-2026-21947 · NVD
- FIRST EPSS
- GHSA-998g-2mp2-f264 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences