Vulnerability in Oracle Java SE (component: Compiler). Supported versions that are affected are Oracle Java SE: 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Oracle |
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No data.
No data.
References
History
Thu, 22 Oct 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Oracle oracle Java Se
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| Vendors & Products |
Oracle oracle Java Se
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Thu, 22 Oct 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-20 |
Thu, 22 Oct 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Network‑Based Exploit of Oracle Java SE Compiler Leading to Unauthorized Data Access | openjdk: Enhance C2 comparisons (Oracle CPU 2026-10) |
| Weaknesses | CWE-1025 | |
| References |
| |
| Metrics |
threat_severity
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threat_severity
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Wed, 21 Oct 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Network‑Based Exploit of Oracle Java SE Compiler Leading to Unauthorized Data Access | |
| Weaknesses | CWE-20 |
Tue, 20 Oct 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Vulnerability in Oracle Java SE (component: Compiler). Supported versions that are affected are Oracle Java SE: 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N). | |
| First Time appeared |
Oracle
Oracle java Se |
|
| CPEs | cpe:2.3:a:oracle:java_se:11.0.32.1:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:17.0.20.1:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:21.0.12.1:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:25.0.4.1:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:27:*:*:*:*:*:*:* cpe:2.3:a:oracle:java_se:8u503:*:*:*:enterprise_performance:*:*:* |
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| Vendors & Products |
Oracle
Oracle java Se |
|
| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: oracle
Published: 2026-10-20T21:26:13.608Z
Updated: 2026-10-20T21:26:13.608Z
Reserved: 2026-09-14T22:10:16.638Z
Link: CVE-2026-91487
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-10-20T22:20:53.160
Modified: 2026-10-21T18:44:55.490
Link: CVE-2026-91487
Redhat