CVE-2026-91375: oracle corporation oracle java se Incorrect Authorization
Vulnerability summary
CVE-2026-91375 is a medium (CVSS 4.7) Incorrect Authorization vulnerability in oracle corporation oracle java se. EPSS estimates a 0.09% chance of exploitation in the next 30 days, higher than 0.5% of scored vulnerabilities.
Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 20-10-2026PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
Vulnerability in Oracle Java SE (component: Libraries). 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 logon to the infrastructure where Oracle Java SE executes 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 creation, deletion or modification access to critical data or all Oracle Java SE accessible data. 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 4.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N).
CVSS metrics
5 scores · 5 sources · 1 version- NVDNIST4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · AlpineEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.09%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu12 products
- openjdk-13All versions (No fix recorded)
- openjdk-16All versions (No fix recorded)
- openjdk-17All versions (No fix recorded)
- openjdk-17-cracAll versions (No fix recorded)
- openjdk-18All versions (No fix recorded)
Debian4 products
- openjdk-17All versions (No fix recorded) | < 17.0.21+9-1~deb12u1
- openjdk-21All versions (No fix recorded) | < 21.0.13+9-1~deb13u2 | < 21.0.13+9-1
- openjdk-25All versions (No fix recorded) | < 25.0.5+8-1~deb13u1 | < 25.0.5+8-1
- openjdk-27All versions (No fix recorded)
Alpine3 products
- openjdk17< 17.0.21.0.3_p1-r0
- openjdk21< 21.0.13.0.3_p1-r0
- openjdk25< 25.0.5.0.3_p1-r0
Oracle corporation1 product
- oracle java se8u503-perf | 11.0.32.1 | 17.0.20.1 | 21.0.12.1 | 25.0.4.1 | 27
4 vendors · 20 products
References
6 links- www.oracle.com/security-alerts/cpuoct2026.htmlVendor Advisory