Buffer Over-read Affecting libcurl package, versions [7.86.0,8.23.0)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CONAN-LIBCURL-21194412
- published18 Oct 2026
- disclosed14 Oct 2026
- creditUnknown
Introduced: 14 Oct 2026
NewCVE-2026-107928 (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 Buffer Over-read in the GnuTLS backend during WebSocket communication with a malicious server when a transmission is blocked. An attacker can cause the client to crash or access sensitive memory contents by manipulating I/O blocking conditions during the connection. This is only exploitable if the build uses the GnuTLS backend and connects to an untrusted WebSocket server under specific I/O blocking circumstances.