CVE-2009-2936
Description
The Command Line Interface (aka Server CLI or administration interface) in the master process in the reverse proxy server in Varnish before 2.1.0 does not require authentication for commands received through a TCP port, which allows remote attackers to (1) execute arbitrary code via a vcl.inline directive that provides a VCL configuration file containing inline C code; (2) change the ownership of the master process via param.set, stop, and start directives; (3) read the initial line of an arbitrary file via a vcl.load directive; or (4) conduct cross-site request forgery (CSRF) attacks that leverage a victim's location on a trusted network and improper input validation of directives. NOTE: the vendor disputes this report, saying that it is "fundamentally misguided and pointless.
Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
EPSS
- Score
- 0.63824 (63.8% probability)
- Percentile
- 99.2%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
References
- 20100329 Medium security hole in Varnish reverse proxy (securityfocus.com)mailing-list
- varnish-cache.org/wiki/CLI
- varnish-cache.org/changeset/3865
- 20100329 Re: [Full-disclosure] Medium security hole in Varnish reverse proxy (securityfocus.com)mailing-list
- FEDORA-2010-6719 (lists.fedoraproject.org)vendor-advisory
Timeline
- ID reserved
- Record published
- Record last updated
Look up another CVE
About CubePath
Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:48 UTC. Sources and licenses