CVE-2026-92387
Received
Received - Intake
libcurl Transfer Timeout Bypass via Missing Control Response
Vulnerability report for CVE-2026-92387, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-20
Last updated on: 2026-10-20
Assigner: curl
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| curl | curl | 8.22.0 |
| curl | curl | 8.21.0 |
| curl | curl | 8.20.0 |
| curl | curl | 8.19.0 |
| curl | curl | 8.18.0 |
| curl | curl | 8.17.0 |
| curl | curl | 8.16.0 |
| curl | curl | 8.15.0 |
| curl | curl | 8.14.1 |
| curl | curl | 8.14.0 |
| curl | curl | 8.13.0 |
| curl | curl | 8.12.1 |
| curl | curl | 8.12.0 |
| curl | curl | 8.11.1 |
| curl | curl | 8.11.0 |
| curl | curl | 8.10.1 |
| curl | curl | 8.10.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
