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Status published
Medium
CVE-2021-22567
Bidirectional Override in Dart SDK
Vulnerability Description
Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Google LLC
View all reports →Affected Software
Dart SDK
Vulnerable Versions:
unspecified
Timeline
Official Publish:
January 5th, 2022
Last Modified:
April 21st, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L