{"identifier":"CVE-2026-87864","cve":{"id":"CVE-2026-87864","description":"Enabling `CURLOPT_CRLF` causes curl to advertise the raw input byte count in\nthe `IMAP APPEND {N}` literal while transmitting line-ending expanded data.\nThe server reads only $N$ bytes for the payload, causing the remaining\noverflow bytes to be interpreted and executed as pipelined IMAP commands\nwithin the authenticated session.","published":"2026-10-20T21:17:20.497000+00:00","modified":"2026-10-22T17:21:57.293000+00:00","status":"Awaiting Analysis","score":null,"severity":"UNSCORED","vector":"","cvss_version":"","affected":[],"weaknesses":[],"references":[{"url":"https://curl.se/docs/CVE-2026-87864.html","source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://curl.se/docs/CVE-2026-87864.json","source":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3972403","source":"2499f714-1537-4658-8207-48ae4bb9eae9"}],"kev":null,"kev_checked":true,"metrics":{},"configurations":[],"source":"nvd","retrieved_at":"2026-10-28T10:24:10.567588+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00221,"percentile":0.12678,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"curl.se","source_url":"https://curl.se/docs/CVE-2026-87864.html","investigate_url":"https://investigate.aeglixmind.com/#curl.se"},{"domain":"hackerone.com","source_url":"https://hackerone.com/reports/3972403","investigate_url":"https://investigate.aeglixmind.com/#hackerone.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-87864","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-87864","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-87864","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}