CVE-2026-34282: Oracle Java SE · Uncontrolled Resource Consumption
Affects Oracle Java SESource CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Oracle CorporationOracle Java SE | Affected
| Fixed in– |
| Oracle CorporationOracle GraalVM for JDK | Affected
| Fixed in– |
| Oracle CorporationOracle GraalVM Enterprise Edition | Affected
| Fixed in– |
Mavencom.oracle.java/sepkg:maven/com.oracle.java/seOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Oracle strongly recommends applying Critical Patch Updates promptly to mitigate vulnerabilities. Until a patch is confirmed and applied, consider restricting network access to affected services and monitoring for unusual application hangs or crashes related to Java networking components.
Description
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
References
- oracle.com/security-alerts/cpuapr2026.html (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-34282 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2460044 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34282.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9254 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9689 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9693 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9686 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9256 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9688 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9687 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9691 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:9694 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11655 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11403 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11902 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11829 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22328 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11822 (opens in a new tab)