CVE-2026-102469

{"id": "CVE-2026-102469", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-102469", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T14:28:32.965961Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}], "cvssMetricV40": [{"type": "Secondary", "source": "emo@eclipse.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.2, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "emo@eclipse.org", "affectedData": [{"vendor": "Eclipse Foundation", "product": "Eclipse Vert.x", "versions": [{"status": "affected", "version": "4.0.0", "versionType": "semver", "lessThanOrEqual": "4.5.34"}, {"status": "affected", "version": "5.0.0", "versionType": "semver", "lessThanOrEqual": "5.0.12"}, {"status": "affected", "version": "5.1.0", "versionType": "semver", "lessThanOrEqual": "5.1.9"}, {"status": "affected", "version": "5.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-15T09:17:15.573", "references": [{"url": "https://github.com/eclipse-vertx/vertx-sql-client/security/advisories/GHSA-j4vf-w939-pgxf", "tags": ["Vendor Advisory"], "source": "emo@eclipse.org"}, {"url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/347", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "emo@eclipse.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-502"}]}], "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 Vert.x DB2 client (vertx-db2-client) contains DRDA protocol handling code that deserializes User Defined Type (UDT) column data using a bare ObjectInputStream.readObject() call with no ObjectInputFilter or class allowlist.\n\n\n\nThis code path is triggered when a DRDA server sends a result set with a column tagged as UDT (FDOCA protocol LID 0x50). However, DB2 does not support this type of UDT. The FDOCA 0x50 type is never sent by a legitimate DB2 server.\n\n\n\nNevertheless, a malicious or man-in-the-middle DRDA server could craft a response with a 0x50-tagged column, causing the client to deserialize arbitrary attacker-controlled bytes on the Vert.x event loop before any application code can inspect or reject the data. If a Java deserialization gadget chain is present on the application's classpath, this enables remote code execution. Without a gadget chain, denial of service is possible via crafted object graphs. TLS is disabled by default, making man-in-the-middle exploitation feasible.\n\n\n\nThe impacted component is io.vertx:vertx-db2-client."}], "lastModified": "2026-10-20T19:27:39.213", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "34023A21-83CE-4F83-AE87-0013BAB3835E", "versionEndExcluding": "4.5.35", "versionStartIncluding": "4.5.0"}, {"criteria": "cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "12790AEA-EB50-47A2-8B07-1D7A7016E0D3", "versionEndExcluding": "5.1.10", "versionStartIncluding": "5.0.0"}, {"criteria": "cpe:2.3:a:eclipse:vert.x:5.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "50BC34C1-4AB6-4047-A3D3-0201A78D81E3"}], "operator": "OR"}]}], "sourceIdentifier": "emo@eclipse.org"}