{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4746", "assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd", "state": "PUBLISHED", "assignerShortName": "GovTech CSG", "dateReserved": "2026-03-24T03:28:09.194Z", "datePublished": "2026-03-24T03:28:20.753Z", "dateUpdated": "2026-03-24T03:28:20.753Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd", "shortName": "GovTech CSG", "dateUpdated": "2026-03-24T03:28:20.753Z"}, "title": "Heap Buffer Over-Write Vulenrabilty in timeplus-io/proton", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "type": "CWE"}]}], "affected": [{"vendor": "timeplus-io", "product": "proton", "collectionURL": "https://github.com/timeplus-io/proton", "modules": ["base/poco/Foundation/src\u200e"], "programFiles": ["inflate.c"], "versions": [{"status": "affected", "version": "0", "lessThan": "1.6.16", "versionType": "git"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src\u200e modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src\u200e modules).<p> This vulnerability is associated with program files inflate.C.</p><p>This issue affects proton: before 1.6.16.</p>"}]}], "references": [{"url": "https://github.com/timeplus-io/proton/pull/943", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "ATTACKED", "Safety": "NEGLIGIBLE", "Automatable": "YES", "Recovery": "USER", "valueDensity": "CONCENTRATED", "vulnerabilityResponseEffort": "LOW", "providerUrgency": "AMBER", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 10, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:Y/R:U/V:C/RE:L/U:Amber"}}], "credits": [{"lang": "en", "value": "TITAN Team (titancaproject@gmail.com)", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src\u200e modules). This vulnerability is associated with program files inflate.C.\n\nThis issue affects proton: before 1.6.16."}], "id": "CVE-2026-4746", "lastModified": "2026-03-24T05:16:25.937", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "USER", "Safety": "NEGLIGIBLE", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "ATTACKED", "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": "AMBER", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "CONCENTRATED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:N/AU:Y/R:U/V:C/RE:L/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "LOW"}, "source": "cve_disclosure@tech.gov.sg", "type": "Secondary"}]}, "published": "2026-03-24T05:16:25.937", "references": [{"source": "cve_disclosure@tech.gov.sg", "url": "https://github.com/timeplus-io/proton/pull/943"}], "sourceIdentifier": "cve_disclosure@tech.gov.sg", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "cve_disclosure@tech.gov.sg", "type": "Secondary"}]}

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