CVE-2021-22567

Bidirectional Override in Dart SDK

Published Jan 5, 2022 CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-9706 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Google
Published
Updated
Apr 21, 2025, 1:57 PM
Reserved
Jan 5, 2021, 12:00 AM
Status
Modified
Published
Jan 5, 2022, 11:15 AM
Modified
Jun 17, 2026, 3:37 AM