CVE-2022-21186: The package @acrontum/filesystem-template before 0.0.2 are vulnerable to Arbitrary Command Injection due to th

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2022-21186 is a critical-severity flaw (CVSS 9.8) affecting filesystem-template. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The package @acrontum/filesystem-template before 0.0.2 are vulnerable to Arbitrary Command Injection due to the fetchRepo API missing sanitization of the href field of external input.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	26.1% (top 2%)
CISA exploited list	No
Published	2022-08-05
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: acrontum

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-05 05:15 UTCPublished CVE record published
2026-06-17 04:25 UTCUpdated Record last modified

acrontum filesystem-template UPGRADE

Affected: < 0.0.2

Fixed in: 0.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls filesystem-template

2. UPGRADE to 0.0.2

npm install filesystem-template@">=0.0.2"

Exact fixes by distribution

npm · @acrontum/filesystem-template · FIXED · 0.0.2 · vulnerable: < 0.0.2 · source

npm install @acrontum/filesystem-template@">=0.0.2" npm ls @acrontum/filesystem-template

Fedora ELN · luksmeta · FIXED · 11-3.eln159 · FEDORA-2026-5176083b78 · source

sudo dnf upgrade --advisory=FEDORA-2026-5176083b78

Fedora 46 · openscad · FIXED · 2021.01-34.fc46 · FEDORA-2026-faf1721128 · source

sudo dnf upgrade --advisory=FEDORA-2026-faf1721128

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: security.snyk.io/vuln/SNYK-JS-ACRONTUMFILESYSTEMTEMPLATE-2419071

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-21186?

filesystem-template: upgrade to 0.0.2. Exact commands for each OS are on this page.

Is CVE-2022-21186 being exploited?

CVE-2022-21186 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-21186 affect?

CVE-2022-21186 affects filesystem-template. Severity is critical (CVSS 9.8). The package @acrontum/filesystem-template before 0.0.2 are vulnerable to Arbitrary Command Injection due to the fetchRepo API missing sanitization of the href field of external input.

How urgent is CVE-2022-21186?

Priority 69/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs