CVE-2026-92387

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://curl.se/docs/CVE-2026-92387.html
https://curl.se/docs/CVE-2026-92387.json
https://hackerone.com/reports/4022003
https://hackerone.com/reports/4022003

Configurations

No configuration.

History

29 Oct 2026, 19:17

Type	Values Removed	Values Added
CWE		CWE-835
References	~~() https://hackerone.com/reports/4022003 -~~	() https://hackerone.com/reports/4022003 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1

20 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 21:17

Updated : 2026-10-29 19:17

NVD link : CVE-2026-92387

Mitre link : CVE-2026-92387

CVE.ORG link : CVE-2026-92387

JSON object : View

Products Affected

No product.

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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