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CVE-2026-3805

use after free in SMB connection reuse

CVSS 7.5 HIGHEPSS 0.7%CWE-416
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
curl · curl

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References
https://curl.se/docs/CVE-2026-3805.htmlhttps://curl.se/docs/CVE-2026-3805.jsonhttps://hackerone.com/reports/3591944http://www.openwall.com/lists/oss-security/2026/03/11/4