CVE-2016-3693

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 2.1% (81st percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.1%CVSS: 8.1Exploit: None knownExposed services: —

A fix is available — apply it.

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.

Internet exposure

The internet-exposure footprint is temporarily unavailable — the KEV-Exposure radar's record for this CVE could not be loaded just now. That is not a finding of zero exposed services; please retry shortly.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
42
EG Risk 42/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation2% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.1%
EPSS %ILE
81st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 20, 2016

Last Modified

June 17, 2026

Advisory Details (7)

Auto-updated Sep 12, 2026
Patch available. Sources: redhat, github_commit.
generic

Foreman :: Security

http://theforeman.org/security.html#2016-3693
generic

CVE-2016-3693 (safemode): Safemode Gem for Ruby is vulnerable to information disclosure - RubySec

http://rubysec.com/advisories/CVE-2016-3693/
generic

Bug #14635: CVE-2016-3693 - `inspect` in a provisioning template exposes sensitive controller information - Foreman

http://projects.theforeman.org/issues/14635
github_commit

commit 82f9b93c54f7 (theforeman/foreman)

Fix landed in theforeman/foreman commit 82f9b93c54f7 — awaiting tagged release

https://github.com/theforeman/foreman/commit/82f9b93c54f72c5814df6bab7fad057eab65b2f2
github_commit

commit 0f764a1720a3 (svenfuchs/safemode)

Fix landed in svenfuchs/safemode commit 0f764a1720a3 — awaiting tagged release

https://github.com/svenfuchs/safemode/commit/0f764a1720a3a68fd2842e21377c8bfad6d7126f
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 7 Satellite server. For the full list of new features provided by Satellite 6.3, see the Release Note

https://access.redhat.com/errata/RHSA-2018:0336
generic

oss-security - CVE-2016-3693: Foreman application information leakage through templates

http://www.openwall.com/lists/oss-security/2016/04/20/8

Vendor Advisories for CVE-2016-3693

Vendor advisories for this CVE are temporarily unavailable — the list could not be loaded just now. That is not a sign that none exist; please retry shortly.

Related CVEs(same product + same vendor + same CWE)· as of October 4, 2026

Same product

1 shown

RubyGems:safemode

Frequently asked(5)

What is CVE-2016-3693?
CVE-2016-3693 is a high vulnerability published on May 20, 2016. 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.
When was CVE-2016-3693 disclosed?
CVE-2016-3693 was first published on May 20, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-3693 actively exploited?
CVE-2016-3693 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% probability of exploitation in the next 30 days (81st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-3693?
CVE-2016-3693 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2016-3693?
A fix for CVE-2016-3693 is available: update to the fixed version the vendor names in its advisory.

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