How severe is GHSA-8c56-v25w-f89c?

No CVSS score has been assigned to GHSA-8c56-v25w-f89c yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-8c56-v25w-f89c?

GHSA-8c56-v25w-f89c affects the following packages: puppet (RubyGems), puppet (RubyGems). Ecosystems affected: RubyGems.

How do I fix GHSA-8c56-v25w-f89c?

Update puppet to 2.7.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8c56-v25w-f89c is resolved across your whole dependency graph.

How do I detect GHSA-8c56-v25w-f89c in my RubyGems dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for puppet, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-8c56-v25w-f89c if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-8c56-v25w-f89c?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-8c56-v25w-f89c can be triaged on real exposure rather than presence alone.

Is GHSA-8c56-v25w-f89c actively exploited in the wild?

No public exploit code has been indexed for GHSA-8c56-v25w-f89c yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-8c56-v25w-f89c?

GHSA-8c56-v25w-f89c has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 28th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-8c56-v25w-f89c?

GHSA-8c56-v25w-f89c is classified as CWE-59 (CWE-59). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-8c56-v25w-f89c published, and has it been updated?

GHSA-8c56-v25w-f89c was published on May 14, 2022 and was last updated on December 2, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

💎 RubyGems

Not in CISA KEV

GHSA-8c56-v25w-f89c — puppet

Fix: puppetlabs/puppet@2775c21

GHSA-8c56-v25w-f89c is a CWE-59 vulnerability in puppet. A fix is available for puppet — see the affected versions and patch details below.

Puppet arbitrary file overwrite

Also known asCVE-2011-3869

Published

May 14, 2022

Updated

Dec 2, 2024

Affected

2 pkgs

Patched

2 / 2

Exploits

None indexed

Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

2 pkgs affected

💎puppet💎puppet

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to overwrite arbitrary files via a symlink attack on the .k5login file.

Affected Packages

2 total 2 fixed

Ecosystem	Package	Vulnerable range	Fix
💎RubyGems	`puppet`	≥ 2.7.0&&< 2.7.5	2.7.5`bundle update puppet --conservative`
💎RubyGems	`puppet`	all versions	2.6.11`bundle update puppet --conservative`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for puppet, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update puppet to 2.7.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8c56-v25w-f89c is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-8c56-v25w-f89c can be triaged on real exposure rather than presence alone.

Tailored to GHSA-8c56-v25w-f89c. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Ubuntu

USN-1223-1Ubuntu

Frequently Asked Questions

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to overwrite arbitrary files via a symlink attack on the .k5login file.

O3 Security · Impact-Aware SCA

Is GHSA-8c56-v25w-f89c in your dependencies?

O3 Security finds GHSA-8c56-v25w-f89c across RubyGems dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works