CVE-2026-92387

Published: Oct 20, 2026Modified: Oct 29, 2026

8.1

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.2 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle.

Related CWEs

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References (4)

https://curl.se/docs/CVE-2026-92387.html

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://curl.se/docs/CVE-2026-92387.json

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://hackerone.com/reports/4022003

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://hackerone.com/reports/4022003

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.