CVE Database›CVE-2023-27536

CVE-2023-27536

curl: GSS delegation too eager connection re-use

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Severity

Moderate

Red Hat Product Security

5.9

CVSS 3.1

Review impact separately from score.

Published · March 20, 2023

Updated · October 15, 2026

Description

A flaw was found in the Curl package. Libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, the GSS delegation setting was left out from the configuration match checks, making them match too easily, affecting krb5/kerberos/negotiate/GSSAPI transfers.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-305 · Authentication Bypass by Primary Weakness