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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-92387

never-ending loop via server response omission

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

curl curl

Default version status: unaffected

  • 8.22.0 to ≤ 8.22.0affected
  • 8.21.0 to ≤ 8.21.0affected
  • 8.20.0 to ≤ 8.20.0affected
  • 8.19.0 to ≤ 8.19.0affected
  • 8.18.0 to ≤ 8.18.0affected
  • 8.17.0 to ≤ 8.17.0affected
  • 8.16.0 to ≤ 8.16.0affected
  • 8.15.0 to ≤ 8.15.0affected
  • 8.14.1 to ≤ 8.14.1affected
  • 8.14.0 to ≤ 8.14.0affected
  • 8.13.0 to ≤ 8.13.0affected
  • 8.12.1 to ≤ 8.12.1affected
  • 8.12.0 to ≤ 8.12.0affected
  • 8.11.1 to ≤ 8.11.1affected
  • 8.11.0 to ≤ 8.11.0affected
  • 8.10.1 to ≤ 8.10.1affected
  • 8.10.0 to ≤ 8.10.0affected

References