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Authentication Bypass by Primary Weakness The advisory has been revoked - it doesn't affect any version of package libcurl-devel  (opens in a new tab)

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EPSS
1.57% (73rd percentile)

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  • Snyk IDSNYK-RHEL9-LIBCURLDEVEL-9436695
  • published15 Mar 2025
  • disclosed20 Mar 2023
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Introduced: 20 Mar 2023

CVE-2023-27536  (opens in a new tab)
CWE-305  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by RHEL.

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.