Exposure of Data Element to Wrong Session Affecting curl package, versions [7.40.0,8.20.0)
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-16340570
- published2 May 2026
- disclosed29 Apr 2026
- creditOsama Hamad
Introduced: 29 Apr 2026
CVE-2026-5773 (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 Exposure of Data Element to Wrong Session due to the SMB connection reuse. An attacker can cause unintended file downloads or uploads to incorrect locations by exploiting a logical error in the reuse of SMB connections.