CVE-2026-3805

EUVD-2026-11141
When doing a second SMB request to the same host again, curl would wrongly use
a data pointer pointing into already freed memory.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
haxxcurl
8.13.0 ≤
𝑥
< 8.19.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
curl
bookworm
7.88.1-10+deb12u14
fixed
bookworm (security)
7.88.1-10+deb12u5
fixed
bullseye
7.74.0-1.3+deb11u13
fixed
bullseye (security)
7.74.0-1.3+deb11u16
fixed
forky
vulnerable
sid
8.19.0-1
fixed
trixie
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
curl
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
questing
Fixed 8.14.1-2ubuntu1.2
released
trusty
not-affected
xenial
not-affected
Common Weakness Enumeration
References
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