{"id":"CVE-2026-3805","title":"When doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory.","summary":"When doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"haxx","product":"curl","affected":["curl >= 8.13.0, < 8.19.0"],"patched":["curl 8.19.0"],"published":"2026-03-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T21:17:06.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-3805","references":[{"url":"https://curl.se/docs/CVE-2026-3805.html","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://curl.se/docs/CVE-2026-3805.json","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"https://hackerone.com/reports/3591944","label":"2499f714-1537-4658-8207-48ae4bb9eae9"},{"url":"http://www.openwall.com/lists/oss-security/2026/03/11/4","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.00745,"epssPercentile":0.52847,"exploits":{"github":1,"githubRepos":["https://github.com/Rat5ak/CVE-2026-3805-curl-SMB-UAF"],"checkedAt":"2026-09-21T15:28:47.699Z"},"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-03-11T15:45:10.217077Z"},"ingestedAt":"2026-09-14T21:15:17.559Z","slug":"CVE-2026-3805","body":"## Overview\n\nWhen doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory.\n\n## Affected\n\n- `curl >= 8.13.0, < 8.19.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `curl 8.19.0`","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}