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Fencer Intel
high 8.1

CVE-2016-3693 json

safemode gem allows context-dependent attackers to obtain sensitive information via the inspect method

published 2016-05-20 10 y ago modified 2026-06-17 4 mo ago also GHSA-c92m-rrrc-q5wf , EUVD-2017-0213

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • rubygems safemode 1.2.4
  • kobo satellite capsule 6.3, satellite 6.3 0.5.1-1.el7sat
  • pulp satellite capsule 6.3, satellite 6.3 2.13.4.6-1.el7sat
  • hiera satellite capsule 6.3, satellite 6.3 1.3.1-2.el7sat
  • foreman satellite capsule 6.3, satellite 6.3 1.15.6.34-1.el7sat
  • katello satellite capsule 6.3, satellite 6.3 3.4.5-15.el7sat
  • pulp-rpm satellite capsule 6.3, satellite 6.3 2.13.4.8-1.el7sat
  • candlepin satellite 6.3 2.1.14-1.el7
  • satellite satellite capsule 6.3, satellite 6.3 6.3.0-23.0.el7sat

red hat advisories RHSA-2018:0336

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-3693 updated cvss 3.1

foreman: inspect in a provisioning template exposes sensitive controller information

  • Red Hat OpenStack Foreman foreman Red Hat Ceph Storage 1.3 foreman Red Hat Enterprise Linux OpenStack Platform 6 (Juno) Installer foreman
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6.3 kobo 0.5.1-1.el7sat, hiera 1.3.1-2.el7sat, candlepin 2.1.14-1.el7, pulp 2.13.4.6-1.el7sat, katello 3.4.5-15.el7sat, foreman 1.15.6.34-1.el7sat, +103 more Red Hat Satellite Capsule 6.3 kobo 0.5.1-1.el7sat, hiera 1.3.1-2.el7sat, pulp 2.13.4.6-1.el7sat, katello 3.4.5-15.el7sat, foreman 1.15.6.34-1.el7sat, pulp-docker 2.4.1-2.el7sat, +64 more
    fixed: vendor fix RHSA-2018:0336

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.13% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
rubygems safemode
<1.2.4
1.2.4

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.