CVE-2021-28789

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-18 · updated 2026-06-17

Description

The unofficial apple/swift-format extension before 1.1.2 for Visual Studio Code allows remote attackers to execute arbitrary code by constructing a malicious workspace with a crafted apple-swift-format.path configuration value that triggers execution upon opening the workspace.

Affected products

Apple-Swift-Format Project Apple-Swift-Format: before 1.1.2 — fixed in 1.1.2

How to fix

Upgrade to a fixed version: Apple-Swift-Format Project Apple-Swift-Format 1.1.2. Check the vendor advisory for mitigations.

References

https://github.com/vknabel/vscode-apple-swift-format/releases/tag/1.1.2
https://vuln.ryotak.me/advisories/11
https://github.com/vknabel/vscode-apple-swift-format/releases/tag/1.1.2
https://vuln.ryotak.me/advisories/11

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