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{"id":61095,"date":"2021-10-31T17:57:10","date_gmt":"2021-11-01T00:57:10","guid":{"rendered":"https:\/\/github.blog\/changelog\/2021-10-31-warning-about-bidirectional-unicode-text"},"modified":"2025-03-22T06:25:57","modified_gmt":"2025-03-22T13:25:57","slug":"warning-about-bidirectional-unicode-text","status":"publish","type":[3522],"link":"https:\/\/github.blog\/changelog\/2021-10-31-warning-about-bidirectional-unicode-text","title":{"rendered":"Warning about bidirectional Unicode text"},"content":{"rendered":"\n

A warning is now displayed when a file's contents include bidirectional Unicode text. Such text can be interpreted or compiled differently than it appears in a user interface. For example, hidden, bidirectional Unicode characters can be used to swap segments of text in a file. This can cause code to appear one way and be interpreted or compiled another way.<\/p>\n

$\"image\"$ <\/p>\n

This security issue is the topic of the Common Vulnerabilities and Exposures (CVE) publication: CVE-2021-42574<\/a>. If your use of bidirectional Unicode characters is intentional and not malformed, you can ignore the warning.<\/strong><\/p>\n

To review a file for which this warning is displayed, open it in an editor that will display the hidden, bidirectional Unicode characters, like Visual Studio Code<\/a> which highlights the characters by default. Then, verify that the characters are necessary and not disguising text that will be interpreted or compiled differently than it appears.<\/p>\n

For more information, refer to Trojan Source: Invisible Source Code Vulnerabilities<\/a>.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"