{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103877","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-10-01T12:43:28.815Z","datePublished":"2026-10-02T10:08:42.494Z","dateUpdated":"2026-10-07T22:07:09.152Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-10-02T10:08:42.494Z"},"title":"Apache Directory LDAP API: Unsafe loading of Java code from LDAP schema elements","problemTypes":[{"descriptions":[{"description":"CWE-502 Deserialization of Untrusted Data","lang":"en","cweId":"CWE-502","type":"CWE"}]}],"source":{"discovery":"INTERNAL"},"affected":[{"vendor":"Apache Software Foundation","product":"Apache Directory LDAP API","packageURL":"pkg:maven/org.apache.directory.api/api-ldap-schema-data","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-schema-data"}],"descriptions":[{"value":"Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API.\n\n\n\nA rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE. \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":"<pre>Deserialization of Untrusted Data <span>vulnerability in Apache Directory LDAP API.</span></pre><p>A rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE.&nbsp;</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/sys8l881blqfgoc3o724jl32bmjl8pvw","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"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/02/5"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-10-02T21:07:21.080Z"}},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-07T20:54:06.776749Z","id":"CVE-2026-103877","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-07T22:07:09.152Z"}}]}}