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CVE-2021-3190

32
FAUCET Score

CVE-2021-3190 is a critical OS Command Injection vulnerability affecting the async-git package for Node.js, specifically versions prior to 1.13.2. Attackers can exploit this flaw by injecting shell metacharacters into functions like git.reset and git.tag, leading to arbitrary command execution. With a CVSS score of 9.8 (CRITICAL) and an EPSS percentile indicating high exploitability, this vulnerability poses a significant risk of complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.13.2CPE matchmatch criteria
cpe:2.3:a:async-git_project:async-git:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.32%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0532 is in the 86th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: async-gitFixed in: 1.13.2

Vendor Advisories (1)

npmGHSA-6c3f-p5wp-34mhcritical

OS Command Injection in async-git

Jan 29, 2021

References

advisory.checkmarx.net / advisory/CX-2021-4772
ExploitThird Party Advisory
github.com / omrilotan/async-git/pull/13
Third Party Advisory
github.com / omrilotan/async-git/pull/13/commits/611823bd97dd41e9e8127c38066868ff9dcfa57a
PatchThird Party Advisory
github.com / omrilotan/async-git/pull/13/commits/a5f45f58941006c4cc1699609383b533d9b92c6a
PatchThird Party Advisory
github.com / omrilotan/async-git/pull/14
PatchThird Party Advisory