CVE-2011-3870

Puppet allows local users to modify the permissions of arbitrary files

6.3 MediumFix available

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Exploit likelihood

0.35%Down 0.9 points since Feb 4, 2022

What each source reports

NVD Score used 6.3

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: CVE-2011-3870
CVSS 2.0: 6.3 MediumAV:L/AC:M/Au:N/C:N/I:C/A:C
Weakness: CWE-59
Updated: 2026-11-02

CVE List No score

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: CVE-2011-3870
Updated: 2026-11-02

EUVDEUVD-2022-4975 No score

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: EUVD-2022-4975
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qh3g-27jf-3j54 No score

Puppet allows local users to modify the permissions of arbitrary files

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: GHSA-qh3g-27jf-3j54
Weakness: CWE-59
Updated: 2026-11-02

OSV No score

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: CVE-2011-3870
Updated: 2026-11-02

OSVDEBIAN-CVE-2011-3870 No score

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: DEBIAN-CVE-2011-3870
Updated: 2026-11-02

OSVGHSA-qh3g-27jf-3j54 No score

Puppet allows local users to modify the permissions of arbitrary files

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to modify the permissions of arbitrary files via a symlink attack on the SSH authorized_keys file.

Record: GHSA-qh3g-27jf-3j54
Weakness: CWE-59
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`puppet` RubyGems	before 2.6.11	2.6.11
`puppet` RubyGems	2.7.0 up to 2.7.5	2.7.5
`puppet` Debian:11	before 2.7.3-3	2.7.3-3
`puppet` Debian:6.0 From an advisory covering 4 CVEs	before 2.6.2-5+squeeze1, plus listed versions 2.6.2-42.6.2-5	2.6.2-5+squeeze1
`puppet` RubyGems	2.7.0 up to 2.7.5, plus listed versions 2.7.12.7.32.7.4	2.7.5
`puppet` RubyGems	before 2.6.11, plus listed versions 0.13.00.13.10.13.20.13.60.16.0 Show 33 moreShow less 0.18.40.22.40.23.00.23.10.23.20.24.00.24.10.24.20.24.30.24.40.24.50.24.60.24.70.24.80.24.90.25.00.25.10.25.20.25.30.25.40.25.50.9.22.6.02.6.12.6.102.6.22.6.32.6.42.6.52.6.62.6.72.6.82.6.9	2.6.11

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2011-3870 is a medium vulnerability (CVSS 6.3) in Puppet, published September 29, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. Fixed in puppet 2.6.11.

References

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