{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102639", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-29T15:52:45.482Z", "datePublished": "2026-09-29T17:57:36.883Z", "dateUpdated": "2026-09-29T17:57:36.883Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-29T17:57:36.883Z"}, "title": "MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization", "descriptions": [{"lang": "en", "value": "MobilityDB version 1.3.0 and earlier contains an out-of-bounds read vulnerability in the MEOS binary and library WKB deserialization logic that allows unprivileged database users to crash the PostgreSQL backend process by supplying a crafted WKB payload with a negative length field. The negative length value wraps to a large unsigned size_t due to missing signed validation, bypasses an overflow-unsafe pointer arithmetic bounds check in wkb_parse_state_check(), and causes memcpy() in text_from_wkb_state() to operate with a corrupted unbounded length, resulting in a remote denial-of-service condition affecting all sessions on the PostgreSQL instance."}], "tags": ["x_open-source"], "datePublic": "2026-09-29T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "description": "Signed to Unsigned Conversion Error", "cweId": "CWE-195", "type": "CWE"}]}], "affected": [{"defaultStatus": "unaffected", "vendor": "MobilityDB", "product": "MobilityDB", "packageURL": "pkg:github/MobilityDB/MobilityDB", "repo": "https://github.com/MobilityDB/MobilityDB", "versions": [{"status": "affected", "version": "1.1.0", "versionType": "semver", "lessThanOrEqual": "1.1.2"}, {"status": "affected", "version": "1.2.0", "versionType": "semver", "lessThan": "1.2.2"}, {"status": "affected", "version": "1.3.0", "versionType": "semver", "lessThan": "1.3.1"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "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": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}}], "references": [{"url": "https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g", "name": "Vendor Advisory", "tags": ["vendor-advisory", "technical-description"]}, {"url": "https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1", "name": "MobilityDB v1.3.1 Patch", "tags": ["patch"]}, {"url": "https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2", "name": "MobilityDB v1.2.2 Patch", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization", "name": "VulnCheck Advisory", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Harsh Raj Singhania", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "vulncheck"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:github/MobilityDB/MobilityDB", "product": "MobilityDB", "repo": "https://github.com/MobilityDB/MobilityDB", "vendor": "MobilityDB", "versions": [{"lessThanOrEqual": "1.1.2", "status": "affected", "version": "1.1.0", "versionType": "semver"}, {"lessThan": "1.2.2", "status": "affected", "version": "1.2.0", "versionType": "semver"}, {"lessThan": "1.3.1", "status": "affected", "version": "1.3.0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "MobilityDB version 1.3.0 and earlier contains an out-of-bounds read vulnerability in the MEOS binary and library WKB deserialization logic that allows unprivileged database users to crash the PostgreSQL backend process by supplying a crafted WKB payload with a negative length field. The negative length value wraps to a large unsigned size_t due to missing signed validation, bypasses an overflow-unsafe pointer arithmetic bounds check in wkb_parse_state_check(), and causes memcpy() in text_from_wkb_state() to operate with a corrupted unbounded length, resulting in a remote denial-of-service condition affecting all sessions on the PostgreSQL instance."}], "id": "CVE-2026-102639", "lastModified": "2026-09-29T18:17:09.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "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": "LOW", "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:L/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": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-09-29T18:17:09.173", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-195"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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