CVE-2023-27536
MEDIUM5.9EPSS 0.01%Published: 3/30/2023Modified: 12/3/2025
Also known as:ALPINE-CVE-2023-27536
Description
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 packages (2)
- Alpine/curlfrom 0, < 8.0.1-r0
- Debian/curlfrom 0, < 7.74.0-1.3+deb11u8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |