{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102461", "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "state": "PUBLISHED", "assignerShortName": "eclipse", "dateReserved": "2026-09-29T08:25:01.312Z", "datePublished": "2026-10-15T08:23:54.256Z", "dateUpdated": "2026-10-15T08:23:54.256Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "shortName": "eclipse", "dateUpdated": "2026-10-15T08:23:54.256Z"}, "affected": [{"vendor": "Eclipse Foundation", "product": "Eclipse Vert.x", "versions": [{"status": "affected", "version": "4.0.0", "lessThanOrEqual": "4.5.34", "versionType": "semver"}, {"status": "affected", "version": "5.0.0", "lessThanOrEqual": "5.0.12", "versionType": "semver"}, {"status": "affected", "version": "5.1.0", "lessThanOrEqual": "5.1.9", "versionType": "semver"}, {"status": "affected", "version": "5.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the uniqueItems keyword validation uses an O(n\u00b2) pairwise comparison loop with no short-circuit or size limit. A remote unauthenticated attacker can submit a moderately-sized JSON array that consumes disproportionate CPU time, leading to denial of service.\n\n\n\nThe impacted component is io.vertx:vertx-json-schema.\n\n\n\nThe following Vert.x modules depend on vertx-json-schema and are also affected:\n\n\n\nio.vertx:vertx-web-openapi-router io.vertx:vertx-web-validation io.vertx:vertx-openapi", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the uniqueItems keyword validation uses an O(n\u00b2) pairwise comparison loop with no short-circuit or size limit. A remote unauthenticated attacker can submit a moderately-sized JSON array that consumes disproportionate CPU time, leading to denial of service.</p><p>The impacted component is io.vertx:vertx-json-schema.</p><p>The following Vert.x modules depend on vertx-json-schema and are also affected:</p><p>io.vertx:vertx-web-openapi-router io.vertx:vertx-web-validation io.vertx:vertx-openapi</p>"}]}], "references": [{"url": "https://github.com/eclipse-vertx/vertx-json-schema/security/advisories/GHSA-4m87-8qfr-8p8m"}, {"url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/340"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "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": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Mike Read", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Eclipse Vert.x", "vendor": "Eclipse Foundation", "versions": [{"lessThanOrEqual": "4.5.34", "status": "affected", "version": "4.0.0", "versionType": "semver"}, {"lessThanOrEqual": "5.0.12", "status": "affected", "version": "5.0.0", "versionType": "semver"}, {"lessThanOrEqual": "5.1.9", "status": "affected", "version": "5.1.0", "versionType": "semver"}, {"status": "affected", "version": "5.2.0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the uniqueItems keyword validation uses an O(n\u00b2) pairwise comparison loop with no short-circuit or size limit. A remote unauthenticated attacker can submit a moderately-sized JSON array that consumes disproportionate CPU time, leading to denial of service.\n\n\n\nThe impacted component is io.vertx:vertx-json-schema.\n\n\n\nThe following Vert.x modules depend on vertx-json-schema and are also affected:\n\n\n\nio.vertx:vertx-web-openapi-router io.vertx:vertx-web-validation io.vertx:vertx-openapi"}], "id": "CVE-2026-102461", "lastModified": "2026-10-15T14:41:34.110", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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": "[email protected]", "type": "Secondary"}]}, "published": "2026-10-15T09:17:14.887", "references": [{"source": "[email protected]", "url": "https://github.com/eclipse-vertx/vertx-json-schema/security/advisories/GHSA-4m87-8qfr-8p8m"}, {"source": "[email protected]", "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/340"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis"}

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{}