PatchTheCVECVE-2021-26543: The "gitDiff" function in Wayfair git-parse <=1.0.4 has a command injection vulnerability
CVE-2021-26543 is a high-severity flaw (CVSS 8.8) affecting git-parse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 2.5% (top 16%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2021-05-06 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
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-2021-26543?
git-parse: upgrade to 1.0.5. Exact commands for each OS are on this page.
Is CVE-2021-26543 being exploited?
CVE-2021-26543 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-2021-26543 affect?
CVE-2021-26543 affects git-parse. Severity is high (CVSS 8.8). 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
How urgent is CVE-2021-26543?
Priority 57/100. High severity; Public exploit reference