Cleartext Transmission of Sensitive Information Affecting libcurl package, versions [7.76.0,8.20.0)
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-CONAN-LIBCURL-16340098
- published2 May 2026
- disclosed29 Apr 2026
- creditArkadi Vainbrand
Introduced: 29 Apr 2026
NewCVE-2026-4873 (opens in a new tab)How to fix?
Upgrade libcurl to version 8.20.0 or higher.
Overview
Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information due to the incorrect reuse of an unencrypted connection for a subsequent request that expects TLS. An attacker can intercept sensitive information if the second connection is done to the same host and using the same URL schema.