CVE-2021-28791

Name: CVE-2021-28791
Creator: NVD / NIST
Published: 2021-03-18T16:15:14.933+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.62%

Last modified Jun 17, 2026

CVE-2021-28791 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The unofficial SwiftFormat extension before 1.3.7 for Visual Studio Code allows remote attackers to execute arbitrary code by constructing a malicious workspace with a crafted swiftformat.path configuration value that triggers execution upon opening the workspace.. EPSS estimates a 1.62% chance of exploitation in the next 30 days.

Description

The unofficial SwiftFormat extension before 1.3.7 for Visual Studio Code allows remote attackers to execute arbitrary code by constructing a malicious workspace with a crafted swiftformat.path configuration value that triggers execution upon opening the workspace.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.62%

73.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Swiftformat Project	Swiftformat	< 1.3.7

References

https://github.com/vknabel/vscode-swiftformat/releases/tag/1.3.7Release Notes, Third Party Advisory
https://vuln.ryotak.me/advisories/13Third Party Advisory
https://github.com/vknabel/vscode-swiftformat/releases/tag/1.3.7Release Notes, Third Party Advisory
https://vuln.ryotak.me/advisories/13Third Party Advisory

Timeline

Published: Mar 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-28791?

How severe is CVE-2021-28791?

CVE-2021-28791 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-28791?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-28791?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST