Replay Attack Affecting curl package, versions [,8.20.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-CURL-16699581
- published15 May 2026
- disclosed13 May 2026
- creditMuhamad Arga Reksapati
Introduced: 13 May 2026
CVE-2026-7168 (opens in a new tab)How to fix?
Upgrade curl to version 8.20.0 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 Replay Attack in the Proxy-Authorization: header handling process. An attacker can gain unauthorized access to resources or sensitive information by leveraging a scenario where authentication credentials intended for one proxy are inadvertently sent to a different proxy when reusing the same handle for multiple transfers with different proxies.