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CVE-2016-2785

Puppet Improper Access Control

9.8 CriticalFix available

CVE-2016-2785 is a critical vulnerability (CVSS 9.8) in Puppet, published June 10, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.89%, the 87th percentile. Fixed in puppet 4.4.2.

Severity
9.8 CriticalCVSS 3.1, NVD
Exploit chance
2.89%EPSS, 87th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
4.4.2puppet +1 more

Description

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.89%Up 1.8 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
puppet
RubyGems
4.0.0 up to 4.4.2
4.4.2
puppet
RubyGems
4.0.0 up to 4.4.2, plus listed versions
4.1.04.2.04.2.14.2.24.2.3
Show 5 moreShow less
4.3.04.3.14.3.24.4.04.4.1
4.4.2

What each source reports

NVD Score used9.8

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
CVE-2016-2785
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-284
Updated
2026-11-02
CVE ListNo score

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
CVE-2016-2785
Updated
2026-11-02
EUVDEUVD-2022-4807No score

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
EUVD-2022-4807
Updated
2026-11-03
GitHub AdvisoriesGHSA-pqj5-7r86-64fv9.8

Puppet Improper Access Control

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
GHSA-pqj5-7r86-64fv
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02
OSV9.8

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
CVE-2016-2785
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-pqj5-7r86-64fv9.8

Puppet Improper Access Control

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

Record
GHSA-pqj5-7r86-64fv
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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