{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103878", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-10-01T12:58:16.190Z", "datePublished": "2026-10-02T10:02:38.002Z", "dateUpdated": "2026-10-02T10:02:38.002Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-02T10:02:38.002Z"}, "title": "Apache Directory LDAP API: Injection of plaintext responses during StartTLS", "problemTypes": [{"descriptions": [{"description": "CWE-345 (Insufficient Verification of Data Authenticity)", "lang": "en", "cweId": "CWE-345", "type": "CWE"}]}], "source": {"discovery": "INTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Directory LDAP API", "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-client-api", "versions": [{"status": "affected", "version": "2.1.0", "lessThan": "2.1.9", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.directory.api:api-ldap-client-api"}], "descriptions": [{"value": "Cleartext transmission of sensitive information\u00a0vulnerability in Apache Directory LDAP API.\n\n\n\nA StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed.\n\n\n\nThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\n\n\n\nUsers are recommended to upgrade to version 2.1.9, which fixes the issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Cleartext transmission of sensitive information&nbsp;vulnerability in Apache Directory LDAP API.</p><p>A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed.</p><p>This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.</p><p>Users are recommended to upgrade to version 2.1.9, which fixes the issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread.html/d98f9w01nd3zmkwrr21y0l9kdr9jpty9", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "important"}}, "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-client-api", "packageURL": "pkg:maven/org.apache.directory.api/api-ldap-client-api", "product": "Apache Directory LDAP API", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "2.1.9", "status": "affected", "version": "2.1.0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cleartext transmission of sensitive information\u00a0vulnerability in Apache Directory LDAP API.\n\n\n\nA StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed.\n\n\n\nThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\n\n\n\nUsers are recommended to upgrade to version 2.1.9, which fixes the issue."}], "id": "CVE-2026-103878", "lastModified": "2026-10-02T10:17:06.570", "metrics": {}, "published": "2026-10-02T10:17:06.570", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread.html/d98f9w01nd3zmkwrr21y0l9kdr9jpty9"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}], "source": "security@apache.org", "type": "Primary"}]}

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