CVE-2026-16440 - Vulnerability Details - OpenCVE

Description

In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.

Published: 2026-08-19

Score: 5.7 Medium

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Eclipse Foundation

Eclipse OpenJ9

unaffected

Version	Status	Constraints
`0.8.0`	affected	< 0.60

No data.

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/eclipse-openj9/openj9/pull/24572
https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx

History

Wed, 19 Aug 2026 10:30:00 +0000

Type	Values Removed	Values Added
Description		In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.
Weaknesses		CWE-674
References		https://github.com/eclipse-openj9/openj9/pull/24572 https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx
Metrics		cvssV4_0 `{'score': 5.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L'}`

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: eclipse

Published: 2026-08-19T10:12:24.389Z

Updated: 2026-08-19T10:12:24.389Z

Reserved: 2026-07-21T06:42:13.649Z

Link: CVE-2026-16440

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-19T11:16:46.183

Modified: 2026-08-19T11:16:46.183

Link: CVE-2026-16440

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-674
Uncontrolled Recursion

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16440", "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "state": "PUBLISHED", "assignerShortName": "eclipse", "dateReserved": "2026-07-21T06:42:13.649Z", "datePublished": "2026-08-19T10:12:24.389Z", "dateUpdated": "2026-08-19T10:12:24.389Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "shortName": "eclipse", "dateUpdated": "2026-08-19T10:12:24.389Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-674", "description": "CWE-674 Uncontrolled Recursion", "type": "CWE"}]}], "affected": [{"vendor": "Eclipse Foundation", "product": "Eclipse OpenJ9", "versions": [{"status": "affected", "version": "0.8.0", "lessThan": "0.60", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault."}]}], "references": [{"url": "https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx"}, {"url": "https://github.com/eclipse-openj9/openj9/pull/24572"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "LOW", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L"}}], "credits": [{"lang": "en", "value": "Sebastian Josue Alba Vives", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Eclipse OpenJ9", "vendor": "Eclipse Foundation", "versions": [{"lessThan": "0.60", "status": "affected", "version": "0.8.0", "versionType": "semver"}]}], "source": "emo@eclipse.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault."}], "id": "CVE-2026-16440", "lastModified": "2026-08-19T11:16:46.183", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "emo@eclipse.org", "type": "Secondary"}]}, "published": "2026-08-19T11:16:46.183", "references": [{"source": "emo@eclipse.org", "url": "https://github.com/eclipse-openj9/openj9/pull/24572"}, {"source": "emo@eclipse.org", "url": "https://github.com/eclipse-openj9/openj9/security/advisories/GHSA-ch6r-v7rg-4jqx"}], "sourceIdentifier": "emo@eclipse.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "emo@eclipse.org", "type": "Primary"}]}