Command injection in git-parse

published 2021-05-06 5 y ago modified 2026-06-17 4 mo ago also GHSA-m744-2jj8-vpfv , EUVD-2022-1097

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.5%; EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits: 0; none known

The "gitDiff" function in Wayfair git-parse <=1.0.4 has a command injection vulnerability. Clients of the git-parse library are unlikely to be aware of this, so they might unwittingly write code that contains a vulnerability. The issue has been resolved in version 1.0.5.

Patch / fix

fixed in 2

npm git-parse 1.0.5
wayfair git-parse 1.0.5

Exploit prediction

2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

advisory.checkmarx.net https://advisory.checkmarx.net/advisory/CX-2020-4302 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	git-parse	<1.0.5	1.0.5

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

advisory.checkmarx.net /advisory/CX-2020-4302
web, exploit, third-party-advisory
npmjs.com /package/git-parse
web, product, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2021-26543
advisory
github.com /wayfair/git-parse
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary