cvedb.io
CVE-2023-27536
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2023-03-30T20:15:07.547 · Last modified 2026-06-17T05:45:25.680

Summary

An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.

Affected products

haxx — libcurl

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.