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CVE-2016-2167
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…
Medium6.8EPSS 6.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 3 months later
· 3 months later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.8 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 6.8% · top 5.9% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (12)
- FEDORA-2016-20cc04ac50 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 89417 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [subversion-announce] 20160428 [ANNOUNCE][SECURITY] Apache Subversion 1.8.16 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SSA:2016-121-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- openSUSE-SU-2016:1264 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [subversion-announce] 20160428 [ANNOUNCE][SECURITY] Apache Subversion 1.9.4 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2016:1263 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-3561 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 1035706 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-201610-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://www.oracle.com/security-alerts/cpuoct2020.html (opens in a new tab)x_refsource_MISCx_transferred
- http://subversion.apache.org/security/CVE-2016-2167-advisory.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-2167)Record last updated .