5.3

CVE-2026-47027: oracle corporation oracle java se Improper Access Control

CVSS: 5.3v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-47027DEBIAN-CVE-2026-47027CGA-227q-2w6q-7g73
Published 21-07-2026Last modified 23-07-2026
Open JSON

Vulnerability summary

CVE-2026-47027 is a medium (CVSS 5.3) Improper Access Control vulnerability in oracle corporation oracle java se. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 46 · Related 34
MGASA-2026-0395OPENSUSE-SU-2026:11335-1OPENSUSE-SU-2026:11336-1OPENSUSE-SU-2026:11337-1OPENSUSE-SU-2026:11362-1OPENSUSE-SU-2026:11363-1

Timeline

  1. 21-07-2026
    PublishedVulnerability first disclosed.
  2. 23-07-2026
    Last modifiedVulnerability information updated.

Description

Vulnerability in Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. 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 partial denial of service (partial 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard72 products
  • liberica-17< 17.0.20.1.2-r0
  • liberica-17-dbg< 17.0.20.1.2-r0
  • liberica-17-default-jdk< 17.0.20.1.2-r0
  • liberica-17-default-jvm< 17.0.20.1.2-r0
  • liberica-17-demos< 17.0.20.1.2-r0
Ubuntu12 products
  • openjdk-13All versions (No fix recorded)
  • openjdk-16All versions (No fix recorded)
  • openjdk-17< 17.0.20+8-1~18.04 | < 17.0.20+8-1~20.04 | < 17.0.20+8-1~22.04 | < 17.0.20+8-1~24.04 | < 17.0.20+8-1 | < 17.0.20+8-1~26.04
  • openjdk-17-cracAll versions (No fix recorded) | < 17.0.20+8-0ubuntu1~26.04
  • openjdk-18All versions (No fix recorded)
Debian4 products
  • openjdk-17< 17.0.20+8-1~deb12u1
  • openjdk-21< 21.0.12+8-1~deb13u1 | < 21.0.12+8-1
  • openjdk-25< 25.0.4+7-1~deb13u1 | < 25.0.4+7-1
  • openjdk-26< 26.0.2+10-1
Oracle4 products
  • graalvmEOL21.3.18
  • graalvm_for_jdk17.0.19 | 21.0.11
  • jdkEOL1.8.0:update491 | 11.0.31 | 17.0.19 | 21.0.11 | 25.0.3 | 26.0.1
  • jreEOL1.8.0:update491 | 11.0.31 | 17.0.19 | 21.0.11 | 25.0.3 | 26.0.1
Oracle corporation1 product
  • oracle java se8u491 | 8u491-perf | 11.0.31 | 17.0.19 | 21.0.11 | 25.0.3 | 26.0.1

5 vendors · 93 products

References

14 links
Show all 14 references