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Vulnerability record · CVE-2011-1921 · published 6 June 2011

CVE-2011-1921: Apache subversion permissions and access controls vulnerability

Apache · Subversion

The mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion 1.5.x and 1.6.x before 1.6.17, when the SVNPathAuthz short_circuit option is disabled, does not properly enforce permissions for files that had been publicly readable in the past, which allows remote attackers to obtain sensitive information via a replay REPORT operation.

4.3 CVSS 2.0 Medium EPSS 6.0% · top 6.9% CWE-264 · Permissions and access controls
4.3CVSS 2.0 base score
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
40References
16 Jun 2026Last modified by NVD

Description

The mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion 1.5.x and 1.6.x before 1.6.17, when the SVNPathAuthz short_circuit option is disabled, does not properly enforce permissions for files that had been publicly readable in the past, which allows remote attackers to obtain sensitive information via a replay REPORT operation.

AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062211.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061913.html
http://secunia.com/advisories/44633 Vendor Advisory
http://secunia.com/advisories/44681 Vendor Advisory
http://secunia.com/advisories/44849
http://secunia.com/advisories/44888
http://secunia.com/advisories/45162
http://subversion.apache.org/security/CVE-2011-1921-advisory.txt Vendor Advisory
http://support.apple.com/kb/HT5130
http://svn.apache.org/repos/asf/subversion/tags/1.6.17/CHANGES
http://www.debian.org/security/2011/dsa-2251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:106
http://www.redhat.com/support/errata/RHSA-2011-0862.html
http://www.securityfocus.com/bid/48091
http://www.securitytracker.com/id?1025619
http://www.ubuntu.com/usn/USN-1144-1
https://bugzilla.redhat.com/show_bug.cgi?id=709114
https://exchange.xforce.ibmcloud.com/vulnerabilities/67804
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18999
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062211.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061913.html
http://secunia.com/advisories/44633 Vendor Advisory
http://secunia.com/advisories/44681 Vendor Advisory
http://secunia.com/advisories/44849
http://secunia.com/advisories/44888
http://secunia.com/advisories/45162
http://subversion.apache.org/security/CVE-2011-1921-advisory.txt Vendor Advisory
http://support.apple.com/kb/HT5130
http://svn.apache.org/repos/asf/subversion/tags/1.6.17/CHANGES
http://www.debian.org/security/2011/dsa-2251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:106
http://www.redhat.com/support/errata/RHSA-2011-0862.html
http://www.securityfocus.com/bid/48091
http://www.securitytracker.com/id?1025619
http://www.ubuntu.com/usn/USN-1144-1
https://bugzilla.redhat.com/show_bug.cgi?id=709114
https://exchange.xforce.ibmcloud.com/vulnerabilities/67804
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18999

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-1921), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.