{"id":"CVE-2026-87863","revision":"1a0ff0466d8f414dbc5bac3c38103937","records":[{"revision":"1a0ff0466d8f414dbc5bac3c38103937","observedAt":"2026-10-30T13:45:33.454+00:00","statement":{"source":"cve-program","id":"CVE-2026-87863","aliases":[],"title":"HSTS response erases persisted entries","description":"An authenticated HTTPS origin can supply an HSTS `max-age` value that the\nparser accepts, but time serialization later fails to process. On 64-bit\nsystems, extreme max-age values compute an absolute expiry within standard\ntime integer limits that exceeds calendar time structure bounds. During cache\nsaves, the original HSTS file is truncated before writing a temporary\nreplacement; when serialization fails, the temporary file is deleted, leaving\nan empty or partial cache. Because the save error is silently ignored during\ncleanup, curl exits successfully despite the data loss.","state":0,"publishedAt":"2026-10-20T20:13:22.379+00:00","modifiedAt":"2026-10-30T12:04:02.535+00:00","affected":[{"ecosystem":"Vendor product","name":"curl","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"curl\",\n                    \"product\": \"curl\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.22.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.22.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.21.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.21.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.20.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.20.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.19.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.19.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.18.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.18.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.17.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.17.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.16.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.16.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.15.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.15.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.14.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.14.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.14.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.14.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.13.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.13.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.12.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.12.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.12.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.12.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.11.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.11.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.11.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.11.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.10.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.10.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.10.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.10.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.9.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.9.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.9.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.9.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.8.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.8.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.7.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.7.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.7.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.7.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.6.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.6.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.5.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.5.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.4.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.4.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.3.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.3.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.2.1\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.2.1\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"8.2.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.2.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://curl.se/docs/CVE-2026-87863.json","https://curl.se/docs/CVE-2026-87863.html","https://hackerone.com/reports/3972373"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-87863","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-87863","identifiers":["CVE-2026-87863"]},"retained":false,"historicalAffected":[]}],"coverage":[]}