CVEvulnerability

CVE-2026-3805

7.5 HIGH Published 2026-03-11 Modified 2026-09-14 Official page ↗

Status: Modified
Published: 2026-03-11
Last modified: 2026-09-14
Assigner: 2499f714-1537-4658-8207-48ae4bb9eae9
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses: CWE-416

Description

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

Affected configurations

• haxx curl (>= 8.13.0 < 8.19.0)

Related

Weakness · CWE (1)

CWE-416 Use After Free weakness

References

https://curl.se/docs/CVE-2026-3805.html Patch, Vendor Advisory
https://curl.se/docs/CVE-2026-3805.json Vendor Advisory
https://hackerone.com/reports/3591944 Exploit, Issue Tracking, Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/03/11/4 Mailing List, Third Party Advisory