CVE-2026-3805CWE-416

CVE-2026-3805

High · published March 11, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
62.1
In the wild
Unconfirmed
What it is

When doing a second SMB request to the same host again, curl would wrongly use

a data pointer pointing into already freed memory.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00988 · 62.1th percentile
Weakness
CWE-416 · Use After Free
Published
2026-03-11T15:16Z
Affected products (1)
ProductVersionsFixed in
haxx/curl≥ 8.13.0, < 8.19.08.19.0
References (4)
https://curl.se/docs/CVE-2026-3805.html · 2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2026-3805.json · 2499f714-1537-4658-8207-48ae4bb9eae9https://hackerone.com/reports/3591944 · 2499f714-1537-4658-8207-48ae4bb9eae9http://www.openwall.com/lists/oss-security/2026/03/11/4 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 11 MAR 10:09Z
    use after free in SMB connection reuse
    cvelistv5