{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103547", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-09-30T19:40:52.241Z", "datePublished": "2026-09-30T19:40:53.200Z", "dateUpdated": "2026-09-30T19:55:54.044Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "product": "OpenBSD", "repo": "https://github.com/openbsd/src", "vendor": "OpenBSD", "versions": [{"lessThan": "errata 057", "status": "affected", "version": "7.8", "versionType": "custom"}, {"lessThan": "errata 021", "status": "affected", "version": "7.9", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)"}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 9.2, "baseSeverity": "CRITICAL", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-30T19:40:53.200Z"}, "references": [{"url": "https://www.openbsd.org/errata79.html"}, {"url": "https://github.com/openbsd/src/commit/4f3f58e83c2a6d239c544236a9d4d76c74bbf960"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.9/common/021_ldapd.patch.sig"}, {"url": "https://www.openbsd.org/errata78.html"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.8", "versionEndExcluding": "errata 057"}, {"vulnerable": true, "criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.9", "versionEndExcluding": "errata 021"}]}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-30T19:55:41.738525Z", "id": "CVE-2026-103547", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-09-30T19:55:54.044Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103547", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-09-30T19:40:52.241Z", "datePublished": "2026-09-30T19:40:53.200Z", "dateUpdated": "2026-09-30T19:55:54.044Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "product": "OpenBSD", "repo": "https://github.com/openbsd/src", "vendor": "OpenBSD", "versions": [{"lessThan": "errata 057", "status": "affected", "version": "7.8", "versionType": "custom"}, {"lessThan": "errata 021", "status": "affected", "version": "7.9", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)"}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 9.2, "baseSeverity": "CRITICAL", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-30T19:40:53.200Z"}, "references": [{"url": "https://www.openbsd.org/errata79.html"}, {"url": "https://github.com/openbsd/src/commit/4f3f58e83c2a6d239c544236a9d4d76c74bbf960"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.9/common/021_ldapd.patch.sig"}, {"url": "https://www.openbsd.org/errata78.html"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.8", "versionEndExcluding": "errata 057"}, {"vulnerable": true, "criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.9", "versionEndExcluding": "errata 021"}]}]}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-103547", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-30T19:55:41.738525Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-30T19:55:48.887Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "OpenBSD", "repo": "https://github.com/openbsd/src", "vendor": "OpenBSD", "versions": [{"lessThan": "errata 057", "status": "affected", "version": "7.8", "versionType": "custom"}, {"lessThan": "errata 021", "status": "affected", "version": "7.9", "versionType": "custom"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)"}], "id": "CVE-2026-103547", "lastModified": "2026-09-30T20:17:31.607", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.2, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-103547", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-30T19:55:41.738525Z", "version": "2.0.3"}}]}, "published": "2026-09-30T20:17:31.607", "references": [{"source": "[email protected]", "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.9/common/021_ldapd.patch.sig"}, {"source": "[email protected]", "url": "https://github.com/openbsd/src/commit/4f3f58e83c2a6d239c544236a9d4d76c74bbf960"}, {"source": "[email protected]", "url": "https://www.openbsd.org/errata78.html"}, {"source": "[email protected]", "url": "https://www.openbsd.org/errata79.html"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"created": "2026-09-30T21:00:09.981662+00:00", "title": "LDAP Authentication Bypass via Reused File Descriptor and Message ID in OpenBSD ldapd", "updated": "2026-09-30T21:00:09.981676+00:00", "vendors": []}