Information Exposure Affecting curl package, versions [8.21.0,8.23.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.33% (25th percentile)

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  • Snyk IDSNYK-UNMANAGED-CURL-21193677
  • published18 Oct 2026
  • disclosed14 Oct 2026
  • creditUnknown

Introduced: 14 Oct 2026

NewCVE-2026-94265  (opens in a new tab)
CWE-200  (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 Information Exposure in the process handling HTTP redirects with embedded credentials. An attacker can obtain sensitive authentication tokens by redirecting a client to an untrusted third-party server, causing the client to transmit credentials such as Kerberos tickets to the attacker. This is only exploitable if Kerberos-based authentication and automatic redirection handling are both enabled, and the client connects to a malicious server that issues a redirect to an untrusted destination.

CVSS Base Scores

version 4.0
version 3.1