CVE-2016-3693
CWE-200Published: May 20, 2016· Updated: Jun 17, 2026
Official Description
The Safemode gem before 1.2.4 for Ruby, when initialized with a delegate object that is a Rails controller, allows context-dependent attackers to obtain sensitive information via the inspect method.
Technical Analysis
CVE-2016-3693 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.
From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (14)
Quick Facts
Related CVEs (CWE-200)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-3693 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts