External Control of File Name or Path Affecting libcurl package, versions [7.76.0,8.23.0)
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-CONAN-LIBCURL-21194989
- published18 Oct 2026
- disclosed14 Oct 2026
- creditUnknown
Introduced: 14 Oct 2026
NewCVE-2026-92390 (opens in a new tab)How to fix?
Upgrade libcurl to version 8.23.0 or higher.
Overview
Affected versions of this package are vulnerable to External Control of File Name or Path via the -J option in the command-line tool when handling HTTP 103 (Early Hints) responses or specific header ordering. An attacker can overwrite existing local files by controlling the remote server's responses. This is only exploitable if the user explicitly uses the remote header naming option and interacts with an untrusted server.