{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-24819", "assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd", "state": "PUBLISHED", "assignerShortName": "GovTech CSG", "dateReserved": "2026-01-27T08:48:56.893Z", "datePublished": "2026-01-27T08:55:54.605Z", "dateUpdated": "2026-01-27T17:01:38.527Z" }, "containers": { "cna": { "affected": [ { "collectionURL": "https://github.com/foxinmy/weixin4j", "defaultStatus": "affected", "modules": [ "weixin4j-base/src/main/java/com/foxinmy/weixin4j/util" ], "product": "weixin4j", "programFiles": [ "CharArrayBuffer.java", "ClassUtil.java" ], "vendor": "foxinmy", "versions": [ { "status": "unknown", "version": "0", "versionType": "git" } ] } ], "credits": [ { "lang": "en", "type": "reporter", "value": "TITAN Team (titancaproject@gmail.com)" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Improperly Controlled Sequential Memory Allocation vulnerability in foxinmy weixin4j (weixin4j-base/src/main/java/com/foxinmy/weixin4j/util modules).

This vulnerability is associated with program files CharArrayBuffer.Java, ClassUtil.Java.

This issue affects weixin4j.

" } ], "value": "Improperly Controlled Sequential Memory Allocation vulnerability in foxinmy weixin4j (weixin4j-base/src/main/java/com/foxinmy/weixin4j/util modules). This vulnerability is associated with program files CharArrayBuffer.Java, ClassUtil.Java.\n\nThis issue affects weixin4j." } ], "metrics": [ { "cvssV4_0": { "Automatable": "YES", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 6.3, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "AMBER", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:A/V:D/RE:M/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-1325", "description": "CWE-1325 Improperly Controlled Sequential Memory Allocation", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd", "shortName": "GovTech CSG", "dateUpdated": "2026-01-27T08:55:54.605Z" }, "references": [ { "tags": [ "patch" ], "url": "https://github.com/foxinmy/weixin4j/pull/229" } ], "source": { "discovery": "UNKNOWN" }, "title": "An out-of-memory (OOM) issue in foxinmy/weixin4j", "x_generator": { "engine": "Vulnogram 0.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-27T17:01:29.695252Z", "id": "CVE-2026-24819", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-27T17:01:38.527Z" } } ] } }