When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
https://hackerone.com/reports/3591944
https://curl.se/docs/CVE-2026-3805.json
https://curl.se/docs/CVE-2026-3805.html
http://www.openwall.com/lists/oss-security/2026/03/11/4
Source: Mitre, NVD
Published: 2026-03-11
Updated: 2026-03-12
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.00018