{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103552", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-30T20:36:55.045Z", "datePublished": "2026-10-02T09:48:05.132Z", "dateUpdated": "2026-10-02T09:48:05.132Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-02T09:48:05.132Z"}, "title": "Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder", "problemTypes": [{"descriptions": [{"description": "CWE-121 Stack-based buffer overflow", "lang": "en", "cweId": "CWE-121", "type": "CWE"}]}], "source": {"discovery": "INTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Directory LDAP API", "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-codec-core", "versions": [{"status": "affected", "version": "1.2.0", "lessThan": "1.2.9", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.directory.api:api-ldap-codec-core"}], "descriptions": [{"value": "Stack Overflow vulnerability in Apache Directory LDAP API.\n\n\n\nBefore binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder.\n\n\n\nThis issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9.\n\n\n\nUsers are recommended to upgrade to version 1.2.9, which fixes the issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Stack Overflow vulnerability in Apache Directory LDAP API.</p><p><span>Before binding, a client can send a deeply nested search filter </span><span>that overflows the stack in the server's decoder.</span></p><p>This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9.</p><p>Users are recommended to upgrade to version 1.2.9, which fixes the issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread.html/fn3bwknn57266hx66w9vv6b4k8rfwcx7", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "critical"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Claude Security", "type": "tool"}, {"lang": "en", "value": "The Apache Software Foundation", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.directory.api:api-ldap-codec-core", "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-codec-core", "product": "Apache Directory LDAP API", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "1.2.9", "status": "affected", "version": "1.2.0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Stack Overflow vulnerability in Apache Directory LDAP API.\n\n\n\nBefore binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder.\n\n\n\nThis issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9.\n\n\n\nUsers are recommended to upgrade to version 1.2.9, which fixes the issue."}], "id": "CVE-2026-103552", "lastModified": "2026-10-02T10:17:06.303", "metrics": {}, "published": "2026-10-02T10:17:06.303", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread.html/fn3bwknn57266hx66w9vv6b4k8rfwcx7"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "security@apache.org", "type": "Primary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.2.0,1.2.9)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache Directory LDAP API", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "directory_ldap_api", "vendor": "apache"}], "created": "2026-10-02T11:30:17.833613+00:00", "updated": "2026-10-02T11:30:17.833644+00:00", "vendors": ["apache", "apache$PRODUCT$directory_ldap_api"]}