Unsynchronized Access to Shared Data in a Multithreaded Context Affecting curl package, versions [7.17.0,8.18.0)
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-14908848
- published9 Jan 2026
- disclosed8 Jan 2026
- creditStanislav Fort
Introduced: 8 Jan 2026
CVE-2025-14017 (opens in a new tab)How to fix?
Upgrade curl to version 8.18.0 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 Unsynchronized Access to Shared Data in a Multithreaded Context during the LDAPS transfers. An attacker can impact the security of concurrent transfers by manipulating TLS settings in one thread, which may inadvertently alter the global configuration and affect other threads, potentially disabling certificate verification for unrelated transfers.
Note:
This issue affects only libcurl builds with "legacy" non-Windows LDAP support. Users of OpenLDAP and WinLDAP are not affected.