CVE-2026-3805

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

11/03/2026

Last modified:

11/03/2026

Description

When doing a second SMB request to the same host again, curl would wrongly use<br /> a data pointer pointing into already freed memory.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

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