CVE-2026-16440
Eclipse OpenJ9 Stack Overflow Vulnerability
Description
In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.
INFO
Published Date :
Aug. 19, 2026, 11:16 a.m.
Last Modified :
Aug. 19, 2026, 11:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | e51fbebd-6053-4e49-959f-1b94eeb69a2c | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Eclipse OpenJ9 to the latest version.
- Apply any relevant security patches.
- Verify the fix by testing with crafted files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-16440.
| URL | Resource |
|---|---|
| https://github.com/eclipse-openj9/openj9/pull/24572 | |
| https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-16440 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-16440
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-16440 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-16440 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Eclipse Foundation', 'product': 'Eclipse OpenJ9', 'versions': [{'status': 'affected', 'version': '0.8.0', 'lessThan': '0.60', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-674 Added Reference https://github.com/eclipse-openj9/openj9/pull/24572 Added Reference https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx