CVE-2026-3805
HIGH severity · CVSS 7.5 · Use-after-free
7.5CVSS HIGH
Summary
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://curl.se/docs/CVE-2026-3805.html ↗