5.9

CVE-2026-91394: oracle corporation oracle graalvm for jdk

Awaiting analysis
AliasesDEBIAN-CVE-2026-91394UBUNTU-CVE-2026-91394ALPINE-CVE-2026-91394
Published 20-10-2026Last modified 23-10-2026

Vulnerability summary

CVE-2026-91394 is a medium (CVSS 5.9) vulnerability in oracle corporation oracle graalvm for jdk. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.42%
0%100%
Low · Change unavailable
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 3
MGASA-2026-0572OPENSUSE-SU-2026:12294-1OPENSUSE-SU-2026:12328-1OPENSUSE-SU-2026:12329-1

Timeline

  1. 20-10-2026
    PublishedVulnerability first disclosed.
  2. 23-10-2026
    Last modifiedVulnerability information updated.

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK 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 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

21-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no 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)
Oracle corporation2 products
Alpine1 product
  • openjdk25< 25.0.5.0.3_p1-r0

4 vendors · 19 products

References

6 links