Use After Free Affecting curl package, versions [7.21.8,8.23.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-21194785
  • published18 Oct 2026
  • disclosed14 Oct 2026
  • creditUnknown

Introduced: 14 Oct 2026

NewCVE-2026-92388  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade curl to version 8.23.0 or higher.

Overview

curl is a command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP. libcurl offers a myriad of powerful features.

Affected versions of this package are vulnerable to Use After Free in the FTP wildcard matching process. An attacker can cause memory corruption or application crash by triggering a failed FTP listing operation and then causing the application to reuse or clone the affected connection handle. This is only exploitable if an application explicitly enables FTP wildcard matching and reuses or clones a handle after a failed FTP listing.

CVSS Base Scores

version 4.0
version 3.1