{"api_version":"1","generated_at":"2026-10-20T22:35:29+00:00","cve":"CVE-2026-87862","urls":{"html":"https://cve.report/CVE-2026-87862","api":"https://cve.report/api/cve/CVE-2026-87862.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-87862","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-87862"},"summary":{"title":"HSTS cache import drops longer-lived child","description":"Importing a `includeSubDomains` parent HSTS entry before a longer-lived child\nentry, silently drops the child. Consequently, when the parent expires, the\nchild's valid HSTS policy is lost, causing curl to issue unencrypted HTTP\nrequests rather than upgrading to HTTPS.","state":"PUBLISHED","assigner":"curl","published_at":"2026-10-20 21:17:20","updated_at":"2026-10-20 21:17:20"},"problem_types":["CWE-201 Information Exposure Through Sent 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detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.22.0 8.22.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.21.0 8.21.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.20.0 8.20.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.19.0 8.19.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.18.0 8.18.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.17.0 8.17.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.16.0 8.16.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.15.0 8.15.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.14.1 8.14.1 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.14.0 8.14.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.13.0 8.13.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.12.1 8.12.1 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.12.0 8.12.0 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.11.1 8.11.1 semver","platforms":[]},{"source":"CNA","vendor":"curl","product":"curl","version":"affected 8.11.0 8.11.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Stanislav Fort (Aisle Research)","lang":"en"},{"source":"CNA","value":"Daniel Stenberg","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"curl","vendor":"curl","versions":[{"lessThanOrEqual":"8.22.0","status":"affected","version":"8.22.0","versionType":"semver"},{"lessThanOrEqual":"8.21.0","status":"affected","version":"8.21.0","versionType":"semver"},{"lessThanOrEqual":"8.20.0","status":"affected","version":"8.20.0","versionType":"semver"},{"lessThanOrEqual":"8.19.0","status":"affected","version":"8.19.0","versionType":"semver"},{"lessThanOrEqual":"8.18.0","status":"affected","version":"8.18.0","versionType":"semver"},{"lessThanOrEqual":"8.17.0","status":"affected","version":"8.17.0","versionType":"semver"},{"lessThanOrEqual":"8.16.0","status":"affected","version":"8.16.0","versionType":"semver"},{"lessThanOrEqual":"8.15.0","status":"affected","version":"8.15.0","versionType":"semver"},{"lessThanOrEqual":"8.14.1","status":"affected","version":"8.14.1","versionType":"semver"},{"lessThanOrEqual":"8.14.0","status":"affected","version":"8.14.0","versionType":"semver"},{"lessThanOrEqual":"8.13.0","status":"affected","version":"8.13.0","versionType":"semver"},{"lessThanOrEqual":"8.12.1","status":"affected","version":"8.12.1","versionType":"semver"},{"lessThanOrEqual":"8.12.0","status":"affected","version":"8.12.0","versionType":"semver"},{"lessThanOrEqual":"8.11.1","status":"affected","version":"8.11.1","versionType":"semver"},{"lessThanOrEqual":"8.11.0","status":"affected","version":"8.11.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Stanislav Fort (Aisle Research)"},{"lang":"en","type":"remediation developer","value":"Daniel Stenberg"}],"descriptions":[{"lang":"en","value":"Importing a `includeSubDomains` parent HSTS entry before a longer-lived child\nentry, silently drops the child. Consequently, when the parent expires, the\nchild's valid HSTS policy is lost, causing curl to issue unencrypted HTTP\nrequests rather than upgrading to HTTPS."}],"problemTypes":[{"descriptions":[{"description":"CWE-201 Information Exposure Through Sent Data","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-10-20T20:10:37.039Z","orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","shortName":"curl"},"references":[{"name":"json","url":"https://curl.se/docs/CVE-2026-87862.json"},{"name":"www","url":"https://curl.se/docs/CVE-2026-87862.html"},{"name":"issue","url":"https://hackerone.com/reports/3972357"}],"title":"HSTS cache import drops longer-lived child"}},"cveMetadata":{"assignerOrgId":"2499f714-1537-4658-8207-48ae4bb9eae9","assignerShortName":"curl","cveId":"CVE-2026-87862","datePublished":"2026-10-20T20:10:37.039Z","dateReserved":"2026-09-09T13:17:36.482Z","dateUpdated":"2026-10-20T20:10:37.039Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-20 21:17:20","lastModifiedDate":"2026-10-20 21:17:20","problem_types":["CWE-201 Information Exposure Through Sent Data"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"87862","Ordinal":"1","Title":"HSTS cache import drops longer-lived child","CVE":"CVE-2026-87862","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"87862","Ordinal":"1","NoteData":"Importing a `includeSubDomains` parent HSTS entry before a longer-lived child\nentry, silently drops the child. Consequently, when the parent expires, the\nchild's valid HSTS policy is lost, causing curl to issue unencrypted HTTP\nrequests rather than upgrading to HTTPS.","Type":"Description","Title":"HSTS cache import drops longer-lived child"}]}}}