CVE-2016-2167

subversion: svnserve/sasl may authenticate users using the wrong realm

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Severity

Low

Red Hat Product Security

3.6

CVSS 2.0

Review impact separately from score.

Published · April 28, 2016

Updated · November 21, 2025

Description

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.

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 2.0 · 3.6
AV:N/AC:H/Au:S/C:P/I:P/A:N

CWE-20 · Improper Input Validation