CVE-2023-27538

CVE-2023-27538

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection.

CVSS 7.7 · High · EPSS 1.5% · Fix available

Published

2023-03-30T00:00:00.000Z

Updated

2026-10-14T22:46:24.426Z

Stack: system

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