CVE-2026-16440: CWE-674 Uncontrolled Recursion in Eclipse Foundation Eclipse OpenJ9
Eclipse OpenJ9 versions up to 0.60 contain a vulnerability where a crafted .class file with deeply nested annotations can cause a segmentation fault due to uncontrolled recursion. This issue is identified as CWE-674. The vulnerability has a medium severity with a CVSS score of 5.7.
AI Analysis
Technical Summary
CVE-2026-16440 describes an uncontrolled recursion vulnerability in Eclipse OpenJ9 up to version 0.60. Specifically, processing a specially crafted .class file containing deeply nested annotations triggers a segmentation fault, potentially causing a denial of service. The flaw is categorized under CWE-674 (Uncontrolled Recursion).
Potential Impact
The vulnerability can cause a segmentation fault in affected Eclipse OpenJ9 versions, leading to a crash of the Java runtime environment. This results in denial of service but does not indicate remote code execution or data compromise based on the provided data.
Mitigation Recommendations
No patch or official fix information is available from the vendor advisory or other sources. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or maliciously crafted .class files with deeply nested annotations.
CVE-2026-16440: CWE-674 Uncontrolled Recursion in Eclipse Foundation Eclipse OpenJ9
Description
Eclipse OpenJ9 versions up to 0.60 contain a vulnerability where a crafted .class file with deeply nested annotations can cause a segmentation fault due to uncontrolled recursion. This issue is identified as CWE-674. The vulnerability has a medium severity with a CVSS score of 5.7.
CVSS v4.0
Score 5.7medium
Affected software
Eclipse Foundation
Eclipse OpenJ9
pkg:github/eclipse-openj9/openj9Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16440 describes an uncontrolled recursion vulnerability in Eclipse OpenJ9 up to version 0.60. Specifically, processing a specially crafted .class file containing deeply nested annotations triggers a segmentation fault, potentially causing a denial of service. The flaw is categorized under CWE-674 (Uncontrolled Recursion).
Potential Impact
The vulnerability can cause a segmentation fault in affected Eclipse OpenJ9 versions, leading to a crash of the Java runtime environment. This results in denial of service but does not indicate remote code execution or data compromise based on the provided data.
Mitigation Recommendations
No patch or official fix information is available from the vendor advisory or other sources. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or maliciously crafted .class files with deeply nested annotations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- eclipse
- Date Reserved
- 2026-07-21T06:42:13.649Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8586cdc6e8be03328f0f25
Added to database: 08/19/2026, 10:34:53 UTC
Last enriched: 09/11/2026, 09:33:18 UTC
Last updated: 10/02/2026, 09:33:49 UTC
Views: 80
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