CVE-2026-92387

CVE-2026-92387

published October 21, 2026

CVSS
—
EPSS
0%
Percentile
22.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00308 · 22.4th percentile
Published
2026-10-21T01:17Z
References (3)
https://curl.se/docs/CVE-2026-92387.html · 2499f714-1537-4658-8207-48ae4bb9eae9https://curl.se/docs/CVE-2026-92387.json · 2499f714-1537-4658-8207-48ae4bb9eae9https://hackerone.com/reports/4022003 · 2499f714-1537-4658-8207-48ae4bb9eae9
EPSS history
Timeline
  • 22 OCT 03:36Z
    EPSS moved — → 0%
    epss
  • 20 OCT 20:19Z
    never-ending loop via server response omission
    cvelistv5
  • 20 OCT 20:19Z
    never-ending loop via server response omission
    cvelistv5