CVE-2021-3190: The async-git package before 1.13.2 for Node.js allows OS Command Injection via shell metacharacters, as demon

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CRITICAL 9.8REMOTEUPGRADE

CVE-2021-3190 is a critical-severity flaw (CVSS 9.8) affecting async-git. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The async-git package before 1.13.2 for Node.js allows OS Command Injection via shell metacharacters, as demonstrated by git.reset and git.tag.

Why this priority

Critical severity
EPSS top 7%: 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	5.4% (top 7%)
CISA exploited list	No
Weakness	CWE-78
Published	2021-01-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: async-git project

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

Am I affected?

Timeline

2021-01-26 18:16 UTCPublished CVE record published
2026-06-17 04:04 UTCUpdated Record last modified

async-git project async-git UPGRADE

Affected: < 1.13.2

Fixed in: 1.13.2

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls async-git

2. UPGRADE to 1.13.2

npm install async-git@">=1.13.2"

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-2021-3190?

async-git: upgrade to 1.13.2. Exact commands for each OS are on this page.

Is CVE-2021-3190 being exploited?

CVE-2021-3190 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-2021-3190 affect?

CVE-2021-3190 affects async-git. Severity is critical (CVSS 9.8). The async-git package before 1.13.2 for Node.js allows OS Command Injection via shell metacharacters, as demonstrated by git.reset and git.tag.

How urgent is CVE-2021-3190?

Priority 67/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Node.js vulnerabilities · Git vulnerabilities

Related CVEs

CVE-2020-28490 CRITICAL 9.1 UPGRADE The package async-git before 1.13.2 are vulnerable to Command Injection via shell meta-characters (back-ticks)

References

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