{"id":"CVE-2026-103552","state":"PUBLISHED","title":"Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder","description":"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.","publishedAt":"2026-10-02T09:48:05.132Z","updatedAt":"2026-10-02T21:07:19.881Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Directory LDAP API"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Directory LDAP API","packageName":"org.apache.directory.api:api-ldap-codec-core","packageURL":"pkg:maven/org.apache.directory.api/api-ldap-codec-core","defaultStatus":"unaffected","versions":[{"version":"1.2.0","status":"affected","lessThan":"1.2.9","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://lists.apache.org/thread.html/fn3bwknn57266hx66w9vv6b4k8rfwcx7","http://www.openwall.com/lists/oss-security/2026/10/02/4"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/103xxx/CVE-2026-103552.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103552","state":"PUBLISHED","datePublished":"2026-10-02T09:48:05.132Z","dateUpdated":"2026-10-02T21:07:19.881Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-09-30T20:36:55.045Z"},"containers":{"cna":{"title":"Apache Directory LDAP API: A unbound client can send a deeply nested search filter that overflows the stack in the server's decoder","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."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Directory LDAP API","packageName":"org.apache.directory.api:api-ldap-codec-core","packageURL":"pkg:maven/org.apache.directory.api/api-ldap-codec-core","defaultStatus":"unaffected","versions":[{"version":"1.2.0","status":"affected","lessThan":"1.2.9","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"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"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based buffer overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-02T09:48:05.132Z"},"source":{"discovery":"INTERNAL"},"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":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.3,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-02T18:29:24.190444Z","id":"CVE-2026-103552","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-02T18:29:28.186Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/02/4"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-02T21:07:19.881Z"}}]}}}