CVE-2026-22018Network attack vector

Partial denial of service via resource exhaustion

Published Apr 21, 2026 · Updated Apr 21, 2026

Resource exhaustion in Oracle Java SE and GraalVM Libraries allows remote attackers to cause partial service interruption via exposed APIs. Oracle has not disclosed the affected library API or the resource allocation that lacks a limit or throttling control. Reachability requires attacker-controlled data to reach a Libraries API through an exposing application, or untrusted code to run in a sandboxed client deployment; the reported impact is limited to partial denial of service.

CVSS severity3.7
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Oracle Java SE and GraalVM Libraries allows remote attackers to cause partial service interruption via exposed APIs. Oracle has not disclosed the affected library API or the resource allocation that lacks a limit or throttling control. Reachability requires attacker-controlled data to reach a Libraries API through an exposing application, or untrusted code to run in a sandboxed client deployment; the reported impact is limited to partial denial of service.

The record

CVE
CVE-2026-22018
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Oracle Corporation
Product
Oracle GraalVM for JDK
Classifications
CWE-770, CAPEC-130, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=17.0.18
  2. Affected versionversion=21.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle GraalVM for JDKversion=17.0.18; version=21.0.10
Oracle Corporation · Oracle GraalVM Enterprise Editionversion=21.3.17
Oracle Corporation · Java Platform, Standard Edition (Java SE)version=11.0.30; version=17.0.18; version=21.0.10; version=25.0.2; version=26; version=8u481; version=8u481-b50; version=8u481-perf

Published CVSS scores

3.7Oracle CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-130Excessive Allocation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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