{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-9086","assignerOrgId":"2499f714-1537-4658-8207-48ae4bb9eae9","state":"PUBLISHED","assignerShortName":"curl","dateReserved":"2025-08-16T05:40:23.800Z","datePublished":"2025-09-12T05:10:03.815Z","dateUpdated":"2026-01-08T09:51:46.552Z"},"containers":{"cna":{"title":"Out of bounds read for cookie path","descriptions":[{"lang":"en","value":"1. A cookie is set using the `secure` keyword for `https://target` \n 2. curl is redirected to or otherwise made to speak with `http://target` (same \n   hostname, but using clear text HTTP) using the same cookie set \n 3. The same cookie name is set - but with just a slash as path (`path=\\\"/\\\",`).\n   Since this site is not secure, the cookie *should* just be ignored.\n4. A bug in the path comparison logic makes curl read outside a heap buffer\n   boundary\n\nThe bug either causes a crash or it potentially makes the comparison come to\nthe wrong conclusion and lets the clear-text site override the contents of the\nsecure cookie, contrary to expectations and depending on the memory contents\nimmediately following the single-byte allocation that holds the path.\n\nThe presumed and correct behavior would be to plainly ignore the second set of\nthe cookie since it was already set as secure on a secure host so overriding\nit on an insecure host should not be okay."}],"providerMetadata":{"orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","shortName":"curl","dateUpdated":"2026-01-08T09:51:46.552Z"},"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-125 Out-of-bounds Read"}]}],"affected":[{"vendor":"curl","product":"curl","versions":[{"version":"8.15.0","status":"affected","lessThanOrEqual":"8.15.0","versionType":"semver"},{"version":"8.14.1","status":"affected","lessThanOrEqual":"8.14.1","versionType":"semver"},{"version":"8.14.0","status":"affected","lessThanOrEqual":"8.14.0","versionType":"semver"},{"version":"8.13.0","status":"affected","lessThanOrEqual":"8.13.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"references":[{"url":"https://curl.se/docs/CVE-2025-9086.json","name":"json"},{"url":"https://curl.se/docs/CVE-2025-9086.html","name":"www"},{"url":"https://hackerone.com/reports/3294999","name":"issue"}],"credits":[{"lang":"en","value":"Google Big Sleep","type":"finder"},{"lang":"en","value":"Daniel Stenberg","type":"remediation developer"}]},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-09-12T17:15:47.921625Z","id":"CVE-2025-9086","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-09-12T17:16:20.317Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2025/09/10/1"},{"url":"https://lists.debian.org/debian-lts-announce/2026/01/msg00002.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-01-05T02:47:38.406Z"}}]}}