CVE-2022-21186

CRITICALNVD 9.89.8—

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 91.4%
KEV: Not listed

Published

August 5, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 25, 2026

⚠️ Active exploitation confirmed. Upstream fix merged — awaiting tagged release. Sources: github_pr.

generic🔴 Active Exploitation

Arbitrary Command Injection in @acrontum/filesystem-template | CVE-2022-21186 | Snyk

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

github_pr

fix rce in url parsing

Fix merged in acrontum/filesystem-template PR #14 on 2022-04-04 — awaiting tagged release

https://github.com/acrontum/filesystem-template/pull/14/commits/baeb727b60991ad82d9e63ac660883793abc0acc

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
@acrontum/filesystem-template	—	0.0.2	—

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-21186?

CVE-2022-21186 is a critical vulnerability published on August 5, 2022. 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.

When was CVE-2022-21186 disclosed?

CVE-2022-21186 was first published in the National Vulnerability Database on August 5, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-21186 actively exploited?

CVE-2022-21186 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-21186?

CVE-2022-21186 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-21186?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-21186, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-21186

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