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Vulnerability record · CVE-2017-9800 · published 11 August 2017

CVE-2017-9800: Apache subversion improper input validation vulnerability

Apache · Subversion

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://.

9.8 CVSS 3.0 Critical EPSS 19% · top 2.8% CWE-20 · Improper input validation
9.8CVSS 3.0 base score, v2 7.5
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha3 to run an arbitrary shell command. Such a URL could be generated by a malicious server, by a malicious user committing to a honest server (to attack another user of that server's repositories), or by a proxy server. The vulnerability affects all clients, including those that use file://, http://, and plain (untunneled) svn://.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://packetstormsecurity.com/files/143722/Apache-Subversion-Arbitrary-Code-Execution.html
http://www.debian.org/security/2017/dsa-3932
http://www.securityfocus.com/archive/1/540999/100/0/threaded
http://www.securityfocus.com/bid/100259 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039127 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:2480
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2017-08-11-933099891.html
https://lists.apache.org/thread.html/cb607dc2f13bab9769147759ddccb14a4f9d8e5cdcad5e99c0d03b63%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/d8cf53affd700dfce90bad4968fb8b1dfb69cf7c443052c70398ff76%40%3Ccommits.subversion.ap
https://security.gentoo.org/glsa/201709-09
https://subversion.apache.org/security/CVE-2017-9800-advisory.txt Vendor Advisory
https://support.apple.com/HT208103
https://www.oracle.com/security-alerts/cpuoct2020.html
http://packetstormsecurity.com/files/143722/Apache-Subversion-Arbitrary-Code-Execution.html
http://www.debian.org/security/2017/dsa-3932
http://www.securityfocus.com/archive/1/540999/100/0/threaded
http://www.securityfocus.com/bid/100259 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039127 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:2480
https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2017-08-11-933099891.html
https://lists.apache.org/thread.html/cb607dc2f13bab9769147759ddccb14a4f9d8e5cdcad5e99c0d03b63%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/d8cf53affd700dfce90bad4968fb8b1dfb69cf7c443052c70398ff76%40%3Ccommits.subversion.ap
https://security.gentoo.org/glsa/201709-09
https://subversion.apache.org/security/CVE-2017-9800-advisory.txt Vendor Advisory
https://support.apple.com/HT208103
https://www.oracle.com/security-alerts/cpuoct2020.html

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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-2017-9800), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.