{"api_version":"1","generated_at":"2026-09-10T22:44:51+00:00","cve":"CVE-2026-89087","urls":{"html":"https://cve.report/CVE-2026-89087","api":"https://cve.report/api/cve/CVE-2026-89087.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89087","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89087"},"summary":{"title":"CVE-2026-89087","description":"The cstruct package before 6.3.0 for OCaml mishandles indexes.","state":"PUBLISHED","assigner":"mitre","published_at":"2026-09-10 20:17:32","updated_at":"2026-09-10 20:17:32"},"problem_types":["CWE-573","CWE-573 CWE-573 Improper Following of Specification by Caller"],"metrics":[{"version":"3.1","source":"cve@mitre.org","type":"Secondary","score":"7.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"}}],"references":[{"url":"https://osv.dev/vulnerability/OSEC-2026-20","name":"https://osv.dev/vulnerability/OSEC-2026-20","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89087","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89087","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"OCaml","product":"cstruct","version":"affected 6.3.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageURL":"pkg:opam/cstruct","product":"cstruct","vendor":"OCaml","versions":[{"lessThan":"6.3.0","status":"affected","version":"0","versionType":"semver"}]}],"descriptions":[{"lang":"en","value":"The cstruct package before 6.3.0 for OCaml mishandles indexes."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-573","description":"CWE-573 Improper Following of Specification by Caller","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-10T19:55:44.327Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://osv.dev/vulnerability/OSEC-2026-20"}],"x_generator":{"engine":"CVE-Request-form 0.0.1"}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2026-89087","datePublished":"2026-09-10T19:55:44.327Z","dateReserved":"2026-09-10T19:55:43.954Z","dateUpdated":"2026-09-10T19:55:44.327Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-10 20:17:32","lastModifiedDate":"2026-09-10 20:17:32","problem_types":["CWE-573","CWE-573 CWE-573 Improper Following of Specification by Caller"],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":3.4}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89087","Ordinal":"1","Title":"CVE-2026-89087","CVE":"CVE-2026-89087","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89087","Ordinal":"1","NoteData":"The cstruct package before 6.3.0 for OCaml mishandles indexes.","Type":"Description","Title":"CVE-2026-89087"}]}}}